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45 Best aquarium heater in 2021: According to Experts.

You could get any random aquarium heater, but if you’re looking for expert advice on choosing the best one for your needs then you’ve arrived at the right place.

It doesn’t matter what your aquarium heater needs are or what your budget is, because I’ve done an in-depth analysis to include the best-rated options suitable for diversified usage needs and different budget ranges.

To make this list, I’ve spent 86 hours researching aquarium heater from the best brands such as: BAOSHISHAN, Poafamx, Eccotemp.

Note: Make sure that option you’re choosing has all the features you need. Afterall, is there any point in purchasing something that’s not usable?

45 Best aquarium heater in 2021: After 86 Hours of Research

To make this list an unbiased resource for choosing the best aquarium heater, I contacted 33 experts and discussed various aspects to consider. After a huge discussion, I went across customer reviews, researched the reputed brands, and a lot of other things. Because my aim is to recommend products that are highly value for your money.

1. Tetra 26446 HT Submersible Aquarium Heater With Electronic Thermostat, 100-Watt,Multicolor -Pet Supplies

By Tetra

  • DO NOT plug heater into an electrical outlet until it is placed inside the aquarium.
  • Please read all label information upon delivery
  • No adjustment is requried.
  • The HT heater is fully submersbile and can be installed vertically or horizontally
  • The HT20 uses a built in electronic theromstat to automatically maintain water at 78° F which is ideal for most tropical fish
  • All Tetra HT heaters have indicator lights to let you know when the heater is on
  • It will be red when heating and green when the proper temperature has been reached.
  • Ideal for aquariums between 10 to 30 gallons with hoods or glass canopies
  • It’s small footprint makes it easy to conceal behind plants or other décor.

2. Orlushy Submersible Aquarium Heater,100W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater -Pet Supplies

By Orlushy

  • Precise temperature dial from 68 to 89°F allows for complete control of aquatic climate within a 1-degree difference.
  • Explosion Proof: 2mm thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank.
  • Automatic shut off when the temperature is reached
  • It shows an area to adjust the temperature
  • Adjustable Aquarium Fish Tank Water Heater Sensitive and reliable thermostat maintains uniform temperature
  • It’s not exactly accurate but it turns easy and can be adjusted at small intervals
  • 100W aquarium heater is suitable for 10 to 20 gallons aquariums,Length – 9″,voltage 110-120V, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart.

3. HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater -Pet Supplies

By HiTauing

  • Rapid Heating and Two Temperature Control System300W aquarium heater is sutable for 40-75 gallon fish tank and made of the most stable nickel-chromium heating wire, which can quickly and stably conduct heat to the surroundings
  • Intelligent Water Sensor and Over Temperature ProtectionThis fish tank heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is completely out of water or it rapidly heats beyond the set temperature, the indicator light will turn green in both cases to ensure the maximum safety of you and your aquatic organisms just like protecting our own safety.
  • Accurate External Digital Display ControllerThe external IC temp controller of this aquarium water heater can show the water temp with 2 red LED digits
  • It can maintain the freshness of fish
  • You can press and hold the button next to the controller for 2-3 seconds to switch.
  • The temperature in Fahrenheit and Celsius is displayed, which can be switched by pressing and holding the button for a few seconds
  • It has a built-in temperature control system of Fahrenheit and Celsius(Temp range: 63-94℉/17-34℃)
  • And the stronger black shell is a high temperature resistant ABS material which protect the fish, your aquatic organisms and you from scalding.
  • There are strong suction cups on the heater guard and the thermometer, it’s easy to install the aquarium heater no to the tank walls or bottom, please keep them fully submerged.
  • To set the temp, just press the button over and over until the screen displaying the temp you desired, the setting is done and the led shows the current water temp again.
  • They are also suitable for places where aquatic life such as fish tanks, aquariums, and small fish ponds are kept
  • Explosion-proof Quartz Glass Aquarium HeaterThe submersible aquarium heater is made of explosion-proof quartz glass material and a high-temperature resistant nickel-chromium heating wire with silicon carbide heat conduction, faster water heating and longer lasting
  • The fish market is a common place for us
  • Wide Range of UseThis 300 watt adjustable aquarium heater is suitable for many occasions

4. hygger 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 120-180 Gallon for Saltwater and Freshwater -Pet Supplies

By hygger

  • When the water temp cool down to 93℉, the heater will start working automatically
  • HIGH-QUALITY MATERIALS: Built-in dual temperature probe, real-time monitoring of water temperature, temperature accuracy of ± 1 °F; high temperature resistant ABS material, no deformation and no softening, explosion-proof and anti-corrosion, no leakage of electricity
  • Strong suction cup bracket, can stably fix the heater in every corner of the fish tank.
  • ② 4 kinds of work instructions – Working/Malfunction/ Thermostatic/ Out of water, easy to understand
  • In addition, it has a power-off memory function and no need to set it again.
  • Automatically reduces power when approaching the set temperature, fully utilizes thermal energy inertia to smoothly reach the set temperature, saving energy.
  • When the heating rod is completely immersed in water, it will start working automatically
  • INTELLIGENT THERMOSTAT: Over-temperature protection prevents “cooking fish”
  • ③ Upgrade the buttons to increase the sense of touch, and the operation is simple and easy, just cycle the buttons.
  • When the water temp exceeds about 93.5 °F, start alternately flashing EE fault code; and over 97℉, the heater will stop heating automatically
  • LED DIGITAL DISPLAY CONTROLLER: ① Displays real-time water temperature or set temperature, three-digit display, water temperature display accurate to 0.1 °F, easy to read
  • ANTI-DRY PROTECTION: When the heating rod is exposed to air, display ER fault code and the heater will shut off automatically
  • RAPID HEATING: Fastest 5 seconds warming, the internal material is updated and upgraded, using titanium steel material, which is safer to use, not easy to deform, and has very strong corrosion resistance
  • Effectively extend the service life.

5. AQQA Submersible Aquarium Heater,100W/200W/300W/500W/800W Fish Tank Heater,External Temperature Controller LED Temperature Display with 2 Suction Cups Suitable for Marine Saltwater and Freshwater -Pet Supplies

By AQQA

  • Memory Function,Dry Burning-resistant ProtectionController with memory function,If power is shut off,the heater will keep the temperature settings until it powers on again,no need to worry about pets when you going out.When the heating rod is 5cm above the water surface, the heating rod will automatically power off, and the controller will display “E1”
  • Temperatures Ranges 59℉ to 93℉,Automatic HeatingThe heating rod built-in thermometer,When the water temperature is lower than the set temperature by 1℉, the heater will automatically heat up, and stop heating when the water temperature is consistent with the set temperature.Fahrenheit and Celsius can be converted to each other,Pressing and holding for 5 seconds changes temperature display from Celsius to Fahrenheit.
  • Explosion-proof Quartz Glass Aquarium Heater Durable and SaferThe heater made of explosion-proof quartz glass material and a high-temperature resistant nickel-chromium heating wire with silicon carbide heat conduction,faster water heating and long lasting.2 hours heating 1℃.The shell is a high temperature resistant PC material, which can effectively protect the fish from scalding.
  • The installation is very simple and no tools are needed.The size of the hook can be adjusted according to the thickness of the fish tank,Very safe and reliable.AQQA products enjoy a one-year warranty, please rest assured to buy.
  • When submerged in the water again, the heater will automatically return to normal, no need to unplug the power or reset the controller.
  • LED External Controller with Indicator LightThe controller is not waterproof, please keep away from water,LED digital display screen shows the current water temperature and preset temperature.The number above the controller is the current water temperature, and the number below is the set temperature,Red light means heating,Blue lights indicate constant temperature,blue light flashing indicates the heater not fully submersibled.
  • Controller Can Be Installed with Adjustable HooksA hook can be installed on the back of the controller to hang on the fish tank

6. Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 -Pet Supplies

By Fluval

  • Equipped with a slim profile mounting bracket and colored display alert system
  • Aquarium heater with dual temperature sensors provide accurate and real-time water temperatures
  • LCD temperature display available in both Fahrenheit and Celsius; with a range of 68 to 93 degrees Fahrenheit
  • Fast heat technology built with a safety shut-off and integrated fish guard to protect fish and invertebrates

7. PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks -Pet Supplies

By PULACO

  • Note: Do not operate or leave product plugged in when your water tank is out of water, heater should be fully submerged into water
  • Quick and Easy Installation:Vertical or horizontal placement using, Aquarium heater automatic temperature control 78℉, no need to adjust temperature, easy to operate, fishes happy.
  • Betta HeaterThis Fish Tank Heater should be 100% submerged into water, Ideal for small glass or acrylic desktop aquariums up 1 to 6 Gallons, not suitable for less than 1 gallon tank.
  • How it Works: Plug in, red light turns on, the heater will start working until water temperature up to 78°F, and red light off, then the green light will turn on, heater stop working and keeping constant temperature 78°F
  • Accuracy:±3°F
  • In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement
  • SATISFACTION GUARANTEEDOur Aquarium Heater is built with durability in mind and safety for every design
  • It is better to install a water pump to help water circulating while heating.
  • 12 Month Warranty and 24 Hour Professional After-sales Service.

8. hygger 300W Aquarium Heater for Fresh-Water Salt-Water, with External Digital Display Thermostat Controller and Thermometer, Auto Quartz Submersible Heater for Fish Tank 30-60 Gallon -Pet Supplies

By hygger

  • Fully SubmergedThe heater tube and the separate sensitive thermometer must be completely submerged under water all the time
  • Quickly Heat UpVoltage 110-120V/60HZ, power 300W, US three-pin plug, heater rod length 7.7 inch
  • When the water temp is cool down to 1℉ less than the set temp, the tank heater will restart heating
  • Led Display ControllerOnly show Fahrenheit degrees
  • With low profile black plastic guard, easy to hide in the tank
  • It will stop heating when the water temp reaches to the set temp, please note that the water temp may go up 1℉ more because of the waste heat
  • For long Time UseVery durable and explosion-proof aquarium heater, can be used for saltwater and freshwater aquariums, service life can be 3 years or more
  • Fast heating up aquarium heater, it takes about 3 minutes to heat 3.5 gallon water up 3℉
  • Please unplug it and wait it to cool down before you removing the heater or doing water change
  • Auto on and off Reliable submersible aquarium heater
  • To set the temp, just press the button over and over until the screen displaying the temp you desired, then stop and wait the digit flashing for 3 times, the setting is done and the led shows the current water temp again

9. FREESEA 50W Mini Aquarium Heater Fish Tank Submersible Heater with LED Temperature Display -Pet Supplies

By FREESEA

  • Temperature range: 59°F~94°F, display Fahrenheit °F, this heater is designed for1~10 gallons tank.
  • Touch button, cyclic adjust temperature , easy to use and Safety.
  • Note:this heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.
  • Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating.
  • SATISFACTION GUARANTEEDGain the confidence to go hard with us! Our Aquarium Heater is built with durability in mind and safety for every design, In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement
  • 12 Month Warranty and 24 Hour Professional After-sales Service.

10. hygger 800W Titanium Steel Aquarium Heater for Marine and Fresh Water, Digital Submersible Heater with Built-in Thermometer, External LCD Display Thermostat Controller, for Fish Tank 120-180 Gallon -Pet Supplies

By hygger

  • Auto Shut Off When Overheating or Not Fully Submergedwith built-in thermometer and waterline detector, when the water temp is over 97F, the controller will auto shut off to prevent overheating, when the top of heating element is out of water over 0.8 inch, the controller will auto shut off and stop heating and will automatically restart heating after you place the heater fully under water
  • The aquarium heater comes with a sturdy clip, there are 2 strong suction cups on the clip, easy to install the heater on to the fish tank wall
  • When you want to check the water temp, you can see that on the heater or the controller display, the digits are synchronized updated
  • Fully Automatic Smart Thermostat it’s very easy to set the temp on the controller, just press the set button to choose the temp digits from 70℉ to 94℉, only integer value can be chose
  • The heating mode is MAX heating when the set temp is 1℉or more higher than water temp, it will be ECO heating when water temp is 0.5-1℉ less than the set temp
  • The fish tank heater can be placed horizontally or vertically, but must be fully submerged underwater
  • Suitable for Fresh Water & Marine Waterdurable black titanium steel heating element, covered by sturdy plastic guard, service life can last for 3 years or more
  • Dual Digital Displays on Controller & Heaterthe digit display on the heater is to show the current water temp, the controller digit display will show the current water temp and the set temp
  • Energy Saving Heater for Aquarium Larger than 60 Galvoltage 110-120V/60HZ, power 800W, US three-pin plug, heater length 9.6 inch
  • Fast heating up aquarium heater, it takes about 2 minutes to heat 3.5 gallon water up 3℉
  • The heater power cord and the controller cord are both 5ft
  • The heater will stop heating when the water temp reaches the set temp, and it will restart heating when the water temp is 0.5℉ lower than the set temp
  • With 2 heating modes: MAX heating, ECO heating, more energy saving than general high power heater
  • Can be used for fresh-water and salt-water fish tanks
  • 800W aquarium heater for fish tank 120-180 gallon

11. Eheim 3619090 Jager Aquarium Thermostat Heater 300W -Pet Supplies

By Eheim

  • On/Off indicator light for at-a-glance monitoring.
  • Made of shock resistant and shatter proof glass for fresh or marine water.
  • Fully submersible, will automatically turn off when water level dips too low.
  • Thermo safey control protects against running dry.
  • Size of Heater is 20” X 1.4” Diameter
  • Heater is meant for Tanks between 159-264 Gallons.

12. Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt -Pet Supplies

By Tetra

  • The HT10 uses a built in electronic theromstat to automatically maintain water at 78° F which is ideal for most tropical fish
  • All Tetra HT heaters have indicator lights to let you know when the heater is on
  • Please read all label information upon delivery
  • No adjustment is requried.
  • It will be red when heating and green when the proper temperature has been reached.
  • DO NOT plug heater into an electrical outlet until it is placed inside the aquarium.
  • It’s small footprint makes it easy to conceal behind plants or other décor.
  • The HT heater is fully submersbile and can be installed vertically or horizontally
  • Ideal for aquariums between 2 to 10 gallons with hoods or glass canopies

13. BOEESPAT Small Aquarium Heater 50W Fish Tank Heater for 5/10 Gallon Betta Fish with LED Temperature Controller and Smart Thermostat -Pet Supplies

By BOEESPAT

  • Small Aquarium Heater with External ControllerYou can set the temperature outside the fish tank through the external controller, and the fish tank accessories of temperature sensing built in will cyclic heating the tank water automatically .Temp range from 65℉ to 93℉
  • Every time you set your betta fish heater, just press the button over and over until it reaches to your desired temp, then stop and wait the digit flashing for 3 times, then setting is done
  • The heater with a built-in thermometer, when temp setting is done, the led will show the water temp all the time
  • Digital DisplayWith led display on the midle of the betta heater front side, when the fish tank heater is heating, there indicator light above the digit is on red, when it stop heating, the light is blue
  • Reliable ThermostatThis heater for fish tank also can as an ideal turtle tank heater(because it can adapt to water level as low as 1.6inch) after finishing the temp setting, it will maintain the tank water at the temp you set
  • The led will display the set temp digit only when you press the controller
  • Shut off When Out of WaterBOEESPAT aquarium heater adopt newest technology, it is a fully submersible aquarium heater for fresh water and saltwater tank, when the top part of betta fish heater is out of water it will be forcibly stopped
  • With 2 strong suction cups at the back side of the betta heater, it’s easy to install it on to glass, acrylic or plastic tank
  • 50W tank heater is for 3-10gallon, 100W tank heater is for 10-20 gallon
  • The tank heater will stop heating when the water temp reaches to set temp, it will restart to heating when the water temp is 1℉ off the set temp
  • The power cord is 5ft, long enough for use indoors
  • 50W Compact Fish Heater110-120V/60HZ square shape design small aquarium heater, fast heating for small fish tank
  • After putting it in the water again, the fault disappears and normal operation resumes.It is a safe and reliable water heater tank

14. Aqueon 100106252 Preset Heater,Black, 100W -Pet Supplies

By Aqueon

  • Ideal for aquariums up to 30 gallons
  • Fully submersible, auto shut-off when overheats, resets when cools down
  • LED light turns on when aquarium water is being heated
  • Preset to 78°, accurate to +/- 1°
  • Shatter resistant
  • No adjustment required

15. FREESEA 25 Watt Aquarium Betta Fish Tank Heater with Aquarium Submersible Thermometer -Pet Supplies

By FREESEA

  • 12 Month Warranty and 24 Hour Professional After-sales Service.
  • Heater rod is suitable for people over 16 years of age
  • Furthermore, Automatic safety shut-off feature, and overheating protection.
  • Intelligent temperature control: Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating
  • SATISFACTION GUARANTEED: Gain the confidence to go hard with us! Our Aquarium Heater is built with durability in mind and safety for every design, In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement
  • Note: 1
  • 25 Watt Heater: This Aquarium heater is suitable for 1 to 5 gallons aquariums, Length – 6.8 inch,voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart.
  • Temperature range: 63°F~95°F , It is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time.
  • Children or minors should be under adult guidance or supervision.
  • Aquarium heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.,Please unplug the power supply when cleaning the fish tank or aquarium water changes

16. HiTauing Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatically Stop Heating and Advanced Temperature Control System, Suitable for Saltwater and Freshwater -Pet Supplies

By HiTauing

  • Digital LED Display ControllerThe external IC temp controller of the fish tank heater can show the water temp with 2 red LED digits
  • And the stronger black protective container is scald-preventing for your aquatic organisms and your safety.
  • Explosion-proof Quartz MaterialThe submersible aquarium heater is made of high-quality quartz glass tube, it’s very durable and explosion-proof, this fish tank heater can be used for saltwater and freshwater aquariums, which is pretty shatter-proof and blast-proof and prevents electricity leakage
  • To set the temp, just press the button over and over until the screen displaying the temp you desired, the setting is done and the led shows the current water temp again.
  • It can maintain the freshness of fish
  • Rapid Heating SystemThe voltage of this fish tank heater is 100-120V/50-60HZ, power 300W, Universal two-pin plug, heater rod length 12.99 inch, power cord is 98.5 inches long, 300W submersible heater for fish tank 26-66 gallon, Temp range: 63-94℉/17-34℃
  • Intelligent Water Sensor and Over Temperature ProtectionThis aquarium heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is completely out of water or it rapidly heats beyond the set temperature, the indicator light will turn green in both cases to ensure the maximum safety of you and your aquatic organisms just like protecting our own safety.
  • The heating tube can conduct heat quickly and fully contact with water to achieve rapid heating effect.
  • The fish market is a common place for us
  • Wide Range of UseThis 300W aquarium heater is suitable for many occasions
  • There are strong suction cups on the heater guard and the thermometer, it’s easy to install the aquarium heater no to the tank walls or bottom, please keep them fully submerged.
  • They are also suitable for places where aquatic life such as fish tanks, aquariums, and small fish ponds are kept
  • The temperature in Fahrenheit and Celsius is displayed, which can be switched by pressing and holding the button for a few seconds

17. VIVOSUN 300W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller -Pet Supplies

By VIVOSUN

  • Safety Guarantee: Made with IP68, the highest waterproof level, and a titanium tube that features explosion-proof and anti-corrosion engineering, which makes this submersible fish tank heater more resistant to damage and heat while heating better than traditional glass heaters; It’s built with overheat and water shortage protections built in
  • External Temperature Controller: The touch-button controller adjusts the temperature without getting your hands wet; It’s easy to control the temp from 68℉/20°C to 94℉/34°C; Check the size chart to find your desired fish tank heater
  • Precise Temperature Control: An intelligent IC chip controls the heater’s temperature, keeping the temperature difference within ±1℃/±2ºF; It provides the best living environment for your aquatic creatures
  • Easy to Setup: The 300W submersible heater is suitable for 31.7- to 66-gallons aquariums; Install it vertically or horizontally and ensure the device is fully submerged under the water
  • Wide Compatibility: The fish tank aquarium heater has CE, FCC, and ROHS certification and the plug has a UL certification; It’s compatible with freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems

18. hygger 500W Aquarium Heater with External Digital Temperature Controller Reef Saltwater Fish Tank Heater for 60-120 Gallon Tank -Pet Supplies

By hygger

  • ️[500 Watt Aquarium Heater]️ voltage 110-120V, suitable for tank capactiy 60-120 gallon freshwater and saltwater aquariums
  • Temperature can be precisely adjusted from 61 to 90°F (16°C ~ 32°C)
  • Temp accuracy is +/- 1°F.
  • ️[Made with Premium Quartz] ️ and double sealed by black protective guard this fish tank heater is resistant to explosion and corrosion, and protect fish and other livestocks from punching and scalding
  • Just press set button to desired temperature, it blinks 3 seconds and begins to work
  • Heat indicator lights on red when fish heater start to heat and turns in yellow once it reach set temperature
  • ️[Over Heat Protection]️ This fully submersible aquarium heater enables memory function and over heat protection
  • ️[Build-in External IC Temp Controller] ️easy to read blue LED digital number shows real time water temperature
  • Auto shut off when over-heats, resets when it cools down.
  • ️[Easy to Set Temperature ] ️without getting hands wet

19. BOEESPAT Aquarium Heater 300W Fish Tank Heater with Anti Scald Protector and Aquarium Thermometer, Fully Submersible Fish Heater for Marine Saltwater and Freshwater (40 to 60 gallons) -Pet Supplies

By BOEESPAT

  • We also deliberately give each customer a free diving thermometer with temp display, you can observe the water temperature of the aquarium at any time.
  • Only 100% Submersible Use: 1
  • SATISFACTION GUARANTEED: 12 Month Warranty and 24 Hour Professional After-sales Service! Our Aquarium Heater is built with durability in mind and safety for every design, In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new water tank heaterr replacement.
  • 300 Watt Water Heater: This Aquarium heaters is suitable for 40 to 60 gallons fish tanks, length 10.24″, voltage 110-120V, power cord is 55.1″, temperature range between 59°F~95°F
  • The heater has an indicator light for current.
  • 300 watt aquarium heater is suitable for people over 16 years of age
  • Please unplug the power supply when cleaning the fish tank or aquarium water changes
  • Intelligent Temperature Control: When water temperature reaches to specified temperature value, water heater will automatically stop heating, when water temperature is lower than the set temperature, turtle tank heater will automatically start heating
  • Children or minors use it should be under adult guidance or supervision.
  • Besides, the thick heatproof cover will also prevent your little fishes from scalding.
  • More Safety Guarantee: Durable black titanium steel heating element, covered by sturdy plastic guard, service life can last for 2 years or more,which features explosion-proof and anti-corrosion during heating
  • During its heating time, submersible water heater must be full submerged into the water
  • Furthermore, automatic safety shut-off feature, and overheating protection

20. VIVOSUN 500W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller -Pet Supplies

By VIVOSUN

  • Easy to Setup: The 500W submersible heater is suitable for 39.6- to 92.5-gallons aquariums; Install it vertically or horizontally and ensure the device is fully submerged under the water
  • Wide Compatibility: The fish tank aquarium heater has CE, FCC, and ROHS certification and the plug has a UL certification; It’s compatible with freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems
  • Titanium Aquarium Heater: Made with IP68, the highest waterproof level, and a titanium tube material that features explosion-proof and anti-corrosion engineering, which makes this submersible heater more resistant to damage while heating better than traditional glass heaters; Built with overheat and water shortage protection
  • Precise Temperature Control: An intelligent IC chip controls the heater’s temperature, keeping the temperature difference within ±1℃/±2ºF; It provides the best living environment for your aquatic creatures
  • External Temperature Controller: The touch-button controller adjusts the temperature without getting your hands wet; It’s easy to control the temp from 68℉/20°C to 94℉/34°C; Check the size chart to find your desired fish tank heater

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21. Aqueon Adjustable PRO Aquarium Heater Up to 100 Gallons, 300 Watts -Pet Supplies

By Aqueon

  • Fully submersible; Auto Shut-Off when over-heats, resets when it cools down
  • Shatterproof and nearly indestructible
  • For fresh and saltwater aquariums
  • Recommended for aquariums up to 100 Gallons
  • Includes suction cups for installation and placement
  • LED light is red when actively heating
  • Adjustable heat setting 68 to 88°F, Electronic Thermostat accurate to +/- 1°

22. DaToo Aquarium Heater 50W Submersible Fish Tank Heater 50 Watt, 1 Yr Warranty -Pet Supplies

By DaToo

  • Select DaToo Aquarium Heater, Let us care about your fish starting from the temperature.
  • Adjustable Temperature – Only need turn the knob on the top of the DaToo aquarium heater, You can easily get the temperature you want(68 to 93°F) and you can read the temperature you set by the dial of the aquarium heater
  • The shell of the DaToo Aquarium Heater is made with Shatterproof, Corrosion resistant, Wear-resistant microcrystalline glass(glass-ceramics), can be used in fresh water and salt water.The heating part is made of nickel-chromium alloy, ensure superior heat transfer and enhanced service life
  • Attention – This is 50W DaToo Aquarium Heater, 6.7inch, fit 2 to 10 gallons tank with hoods or glass canopies and keep the water flowing( This is very important).Please confirm these details before purchase
  • Thermostat system to ensure that your beloved fish can be happy and comfortable life
  • Stepwise heating mode, it will automatically turn on and off to keep your set temperature, reduce electricity consumption
  • No suitable temperature, our fish will not survive healthy
  • Select DaToo Products= Own A Private Aquarium Housekeeper.
  • Select DaToo Aquarium Heater, Let it serve your fish forever..
  • The DaToo Submersible Aquarium Heater is a system that create a warm and comfortable living environment for your lovely fish
  • DaToo 50W Aquarium Heater – How to make our beloved fish live in a comfortable environment? This is a matter of concern
  • The process of heating does not produce invisible toxins
  • Select DaToo Aquarium Heater, not only care about your fish, but also save electricity fee for you.
  • BPA Free And Energy Saving – Every plastic component of the DaToo Aquarium Heater is made with durable, high-quality, BPA-free plastic
  • Sturdy And Durable – Still worried about the heater will be broken?Now let’s say goodbye to this worry
  • This means it is safe not only for your fishes, but for you as well

23. SZELAM 500W Aquarium Heater Submersible Fish Tank Heaters with Intelligent Temperature Probe and LED Display External Temperature Controller,for Fish Tank 79-120 Gallons -Pet Supplies

By SZELAM

  • Top Quality Material Brings More Safety Guarantee. Made of thick quartz tube heating rod, with black grit and thick ABS black cover, which features explosion-proof and anti-corrosion during heating
  • The external temp controller brings you more convenient and safe to adjust the set temp externally.
  • Built with Overheat and Water Shortage Protection. This submersible aquarium heater is more sensitive and intelligent to resist overheat and water shortage than traditional glass heaters and it is automatically power off when taken out from water.
  • External Temperature Controller with Dual Temp Displays. With dual LED digital displays, you can observe water temp and set temp of fresh or marine water at the same time
  • Super Easy to Setup with Wide Compatibility. This 500W submersible heater is suitable for 79 to 120 gallons fish tank and the power cord and plug have UL certification, which has more safety guarantee while heating
  • Precise Temperature Control with Temp Probe. Our aquarium heater has sensitive temp probe, which is more precise to control the heater temp, making the temp difference within ±1℉ and providing the suitable living environment for your aquatic creatures.
  • Besides, the thick heatproof cover will also prevent your little fishes from scalding.
  • It is applied for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems.

24. Fluval E100 Advanced Electronic Heater, 100-Watt Heater for Aquariums up to 30 Gal., A772 -Pet Supplies

By Fluval

  • Fast heat technology built with a safety shut-off and integrated fish guard to protect fish and invertebrates
  • Equipped with a slim profile mounting bracket and colored display alert system
  • LCD temperature display available in both Fahrenheit and Celsius; with a range of 68 to 93 degrees Fahrenheit
  • Aquarium heater with dual temperature sensors provide accurate and real-time water temperatures

25. hygger 120-180 Gallon Aquarium Heater with Digital Temp Controller Shatterproof Titanium Tube 800W Submersible Fish Tank Heater Saltwater Freshwater -Pet Supplies

By hygger

  • Indicator light let you know when the heater is on
  • {FOR 120-180 GAL} 800 watt aquarium heater, voltage 110-120 Volts, heater rod 9.6 inches long, suitable for tank capacity 120-180 gallon freshwater and saltwater aquariums
  • It will cycle through all the set temperatures
  • {SHATTERPROOF CORROSION RESISTANT} Corrosion resistant, shatterproof titanium tube construct heats fast, nealy unbreakable for both saltwater and freshwater aquariums
  • {EASY TO USE} Easy to set temperature without getting hands wet
  • The heater will shut off when removed from the water, and resume functioning upon return
  • Just keep pushing the button
  • Temperature can be precisely adjusted from 68 to 93°F (20°C ~ 34°C), electronic thermostat accurate to +/- 2 degrees Fahrenheit differences
  • { RUNNING DRY & OVER-HEAT PROTECTION } This fully submersible fish tank heater maintains proper temperature for your fish in a safety way, auto shut off when over-heats, resets when it cools down
  • ABS plastic protective sleeve prevents fish from being scald
  • {EASY TO READ LCD DISPLAY} Build-in external temp controller, easy to read LED digital number shows real time water temperature and set temperature
  • It will be red when heating and green when the proper temperature has been reached

26. hygger 50W Mini Submersible Digital Display Aquarium Heater for Small Fish Tank, Compact and Fast Heating Thermostat, with External Controller and Built-in Thermometer, for Betta, Turtle -Pet Supplies

By hygger

  • 50W tank heater is for 1-6.5gallon, 100W tank heater is for 6.5-13 gallon
  • Keep the controller away from water, it’s not waterproof
  • The heater with a built-in thermometer, when temp setting is done, the led will show the water temp all the time
  • The tank heater will stop heating when the water temp reaches to set temp, it will restart to heating when the water temp is 1℉ off the set temp
  • Reliable Thermostatthis an automatic aquarium thermostat, after finishing the temp setting, you can be confidence on that it will maintain the tank water at the temp you set
  • The led will display the set temp digit only when you press the controller
  • Digital Displaywith led display on the midle of the heater front side, when the fish tank heater is heating, there indicator light above the digit is on red, when it stop heating, the light is off
  • With 2 strong suction cups at the back side of the betta heater, it’s easy to install it on to glass, acrylic or plastic tank
  • If the water temp is over 95℉, the heater will auto shut off and led displaying HH, it will work normally again when the water temp is lower than 95℉
  • Compact Small Heater110-120V/60HZ oval shape design little aquarium heater, fast heating for small fish tank
  • External Controllereasy to set the temp on the controller, only show farenheit temp, you can set the temp range from 63℉ to 94℉, temp accuracy 1℉
  • Every time you set the temp, just press the button over and over until it reaches to your desired temp, then stop and wait the digit flashing for 3 times, then setting is done
  • Heater Dimension: 2.7×1.4x 4.5 inch
  • Shut off When Out of Waterplease note that this a fully submersible aquarium heater for fresh water and saltwater tank, when the top part of the heater is out of water it will auto shut off and the led displaying E1, when fully in water again it will return to normal work again
  • The power cord is 5ft, long enough for use indoors

27. hygger Fast Heating Titanium Aquarium Heater with LED Digital Temp Controller 500W Submersible Fish Heater for 60-120 Gallon Freshwater Marine Tank -Pet Supplies

By hygger

  • 500 watt aquarium heater, voltage 110-120V, suitable for tank capactiy 60-120 gallon freshwater and saltwater aquariums
  • This fully submersible aquarium heater enables memory function and over heat protection
  • Temperature can be precisely adjusted from 70 to 94°F
  • Easy to set temperature without getting hands wet
  • Build in hand button, Keep pushing the button
  • Made with premium titanium and double sealed by black protective guard, this fish tank heater is resistant to explosion and corrosion, and protect fish and other livestocks from punching and scalding
  • Temp accuracy is +/- 1°F.
  • It will cycle through all the set temperatures
  • Build-in external IC temp controller, easy to read LED digital number shows real time water temperature
  • Auto shut off when over-heats, resets when it cools down

28. EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating Technology -Tools & Home Improvement

By EcoSmart

  • Manufactured in China
  • The product is highly durable
  • Heating elements are durable and are threaded for easy replacement
  • Activation Flow – 0.3 GPM
  • The product is easy to use

29. Koehler Enterprises KE12BX 10 Piece Hose Clamp Box (Size SAE 12),Silver -Automotive

By Koehler

  • SAE size 12, clamping range from 1/2 inch to 1 -1/4 inches (1,43 to 3,1 cm)
  • 300 series stainless steel band provides maximum corrosion resistance to salt and most chemicals
  • Ideal for automotive, home maintenance, plumbing, industrial and marine applications
  • Versatile and easy to use and maintain
  • Suitable for virtually any clamping application

30. HITOP 25W 50W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (50W) -Pet Supplies

By HITOP

  • Adjustable and easy to use: This aquarium heater, adjustable temperature range 68 ~ 93 °F, after setting the temp you want, will on or shut off automatically when the water temperature changes, no extra adjustment is required.
  • Thickened Glass: 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much safer for human and your lovely fishes, your pets will no longer fear the winter.
  • Besides, we provide 1 more extra suction cup for spare (total 3 PCS), and we provide 12 months warranty.
  • Comes with an sticker thermometer to detect water temp at any time.
  • Easier installation, you can install it with any angle by 2 powerful suction cups, just make sure it is under water fully
  • Accurate Temperature Control: This fish tank heater built-in thermostat, will automatically keep the water at the set temperature within±2°F error
  • HITOP aquarium heater 50W, length 7.2-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums up to 15 Gallons.

31. MarineLand Precision Submersible Heater, for Freshwater or Saltwater Aquariums, 250-watt -Pet Supplies

By MarineLand

  • Top dial view shows the setting from an additional location.
  • The advanced heating element contains a mica core surrounded by a mesh heating element for superior heat transfer with enhanced durability
  • EASY TO VIEW: Sliding scale tells the exact temperature setting – top dial view shows the setting from an additional location.
  • Adjustable temperature dial allows you to set the temperature 1 degree with every click.
  • Thermal Switch automatically turns off as temperature rises above an internal preset and turns back on once it cools down.
  • Advanced mounting bracket securely attaches to glass and provides 3 window positions to view the temperature display
  • THERMAL SWITCH: Automatically turns off when temperature rises above an internal pre-set and turns back on once it cools down.
  • MOUNTING BRACKET: Securely attaches to glass and provides three window positions to view the temperature display.
  • This 250 watt heater is for aquariums up to 70 gallons
  • Easy to view sliding scale tells the exact temperature setting
  • ADVANCED HEATING ELEMENT: Contains a mica core surrounded by a mesh heating element for superior heat transfer with enhanced durability.

32. Bnzaq Fish Tank Aquarium Heater – Adjustable Temperature Submersible Thermostat Heater,25W/50W/100W/150W/200W/300W -Pet Supplies

By Bnzaq

  • [NO LONGER CHILL YOUR FISH]Automatically regulate and maintain water temperature,imitate the original ecological environment for your tropical fish.Provided fish with warm water environment.Perfect to apply to fresh and salt water.
  • [ATTENTION]Please place the heater near place (filter or pump) of water flowing to keep more even water temperature.Unplug the heater 30 minutes early when changing the water for the fish tank.
  • [ADJUSTABLE TEMPERATURE]Temperature range: 68°F~93°F.25W heater:suitable for fish tank within 7 gallons,Length:7.8″.Easy to adjust temperature by the aquarium heater that suit more species of fish.
  • [PREMIUM SHATTERPROOF GLASS]Made of shatterproof glass and BPA-free plastic.Bnzaq aquarium heaters are fully submersible and safe for fish without any toxic substance producing.3 FREE artificial aquarium plants as ornament in your tank.
  • [AUTOMATIC CONSTANT TEMPERATURE]When water temperature reaches set value,the indicator light will be OFF and the heater will automatically stop heating.The heater will automatically start heating and indicator light will be ON if water temperature is low.You could place heater horizontally or vertically.

33. Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White -Tools & Home Improvement

By Eccotemp

  • For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment.
  • Safe electronic ignition system; plugs into standard 120v electrical outlet with UL-listed cord.
  • Easy to read digital temperature display, on a compact and space-saving design with minimal noise output.
  • Uses standard 1/2″ NPT water fittings and is equipped with easy to use manual water temperature controls.Minimum 0.65 GPM flow rate
  • Whole home indoor, gas powered tankless water heater, rated at 3.6 GPM that activates only when in use, making it an energy saver.

34. Submersible Aquarium Heater, 800W/1200W fish tank heater, double tube heating, rapid heating and energy saving, LED digital temperature controller, suitable for sea water and fresh water(1200W) -Pet Supplies

By TINTOR

  • APPLICABLE FISH TANK SIZEThe suitable range of this fish tank heater: 800W (100-210gal) 1200W (150-300gal), this heater is suitable for seawater fish tanks and freshwater fish tanks
  • EXTERNAL SMART THERMOSTAT The controller uses PID smart chips, fast heating, high efficiency and energy saving, intelligently maintains constant temperature, and can accurately control the temperature within ±1ºF
  • (2) Automatic fault detection, flashing prompt
  • (5) Adopt frequency conversion heating technology to save energy and electricity
  • POWER-OFF MEMORY FUNCTION When it recovers after a power failure, without any operation, the heater will automatically restore to the temperature setting before the power-off, saving you the trouble of resetting the temperature
  • (4) Constant temperature protection to prevent cooking fish
  • PRODUCT FEATURES (1) The heater has automatic power-off protection function when it leaves the water surface
  • (3) LED digital display, the fish tank temperature is clear at a glance
  • SAFE AND DURABLE The aquarium heater uses explosion-proof quartz tube, high temperature resistant environmental protection ABS plastic protective cover, high-definition LED digital display controller and high-quality power cord, which is safe and more durable for your fish tank

35. Aquarium Addiction Funny Aquarium T-Shirt -Fish & Aquariums

By Fish Keeper – Aquarium Lover Gifts & Gift Ideas

  • Lightweight, Classic fit, Double-needle sleeve and bottom hem
  • You like to use aquarium filters, heaters and decorations and always want to watch your fishes swim? Don’t think any longer and grab this Aquarium Addiction design | Funny Aquarium design now!
  • You love Fish Keeping and Tanks? You are a proud Fish Owner? Then get this cool Aquarium Addiction design now or use it as a birthday or christmas gift idea for someone who loves Fish Keeping and Tanks.

36. BAOSHISHAN 300L Aquarium Chiller 75gal 1/3 HP Fish Tank Chiller Special Quiet Design Refrigeration Compressor for hydroponics Water Weeds Axolotl Jellyfish Coral Reef Tank Shrimp (75gal/300L) -Aquarium Heaters & Chillers

By BAOSHISHAN

  • [One Year Warranty]–BAOSHISHAN take the responsibility of one year warranty for this water chiller, please don’t worry, professional and friendly after-sales team will help you solve any problem, and you only need to enjoy the convenience it brings.
  • [Built-in Fan for Fast Cooling]–The two built-in fans can dissipate compressor heat well, so that the compressor can work efficiently for a long time
  • After powering off and restarting, the chiller will continue to cool according to the original set temperature.
  • [High-efficiency Freon Free Compressor]–This 75gal aquarium chiller adopts a energy-saving refrigeration compressor, using r134a refrigerant, circulating cooling without pollution and do not need to be supplemented.
  • [Constant Stable Temperature]–Pure titanium evaporator achieves the most efficient heat exchanging, corrosion resistant, for both fresh and salt water
  • The temperature of the AL-300L chiller can be well controlled at 68-79F/20-26°C, the ideal temperature range for your aquarium or hydroponics system.
  • In addition, there are a large number of heat dissipation holes on both sides of the chiller, so there must be a space of 6 inch/15cm around the chiller to ensure good air circulation.
  • [Safety Protection Function ]–The water cooler is equipped with an overcurrent automatic shutdown protection system and a power-off temperature memory system

37. Aquarium Heater 500W/800W/1000W/1200W, Double Heating Tubes, Fast Heating and Power Saving, External Digital Temp Controller, Used for 50-160 Gallon Fresh/Salt Water Fish Tanks(1200W) -Pet Supplies

By TINTOR

  • SAFE AND DURABLEExplosion-proof quartz tube, special safety design for auto shut off when overheating or not fully submerged
  • PRECISE TEMPERATURE CONTROLThe built-in PID chip realizes rapid heating, smart constant temperature, stability and precision, temperature setting range is 68~93ºF and the temperature difference is within ±1ºF
  • The heater provides a comfortable living environment for your aquatic creatures
  • The heater provides a super safe living environment for your fish.
  • REALTIME TEMPERATURE DISPLAYThe LED digital display controller displays the real-time water temperature and set temperature, so you can keep track of the fish tank temperature at any time.WARM TIPSIn the process of using the heater, in order to make the temperature of the fish tank uniform, please be sure to use it with the circulating water pump
  • Four Size Available500W(50-80 gal), 800W(80-105 Gal), 1000W(105-130 Gal), 1200W(130-160 Gal).
  • HIGH-QUALITY MATERIALABS plastic integral molding, no deformation, no softening, explosion-proof and anti-corrosion, no pollution, high insulation strength, suitable for both fresh water and sea water
  • The double-row suction cup bracket can stably fix the heater on any corner of the fish tank

38. Wemo F7C030fc Light Switch, WiFi enabled, Works with Alexa and the Google Assistant -Aquarium Heaters & Chillers

By WeMo

  • Wi-Fi connectivity lets you control your lights from anywhere
  • Compatible with Alexa, Google Assistant, Nest and more
  • Away Mode turns on and off lights for extra security when you’re away
  • Free Wemo app allows you to schedule your lights

39. Poafamx Aquarium Water Chiller 42gal Fish Tank Cooling System for Home Fish Coral Shrimp Farming 110V with pump -Aquarium Heaters & Chillers

By Poafamx

  • [ONE WATER PIPE NEED CUT INTO 2 PIECES] Aquarium water chiller is equipped with a 3m/118 inch long water pipe, and you need to cut it into 2 pieces while installation
  • [TWO KINDS OF TEMPERATURE SETTING METHOD] We have code d and F1 which represents temperature difference
  • The pursuit of better cooling effect and more rapid cooling speed with this chiller requires less water volume, especially for hydroponic systems
  • If the chiller display is different from the instructions, please look at the pictures or video in the listing, or contact us freely
  • [EFFICIENT COMPRESSOR COOLING] This aquarium chiller is built-in high-efficiency energy-saving compressor, has rapid and efficient cooling while maintain low noise, less than 45dB
  • [PRECISE ADJUSTMENT ACCURATE MONITORING] Microcomputer accurate temperature, fine changes, create a healthy environment for your aquarium animals and plants
  • [LESS WATER FOR BETTER COOLING EFFECT] This 42gal chiller can be widely used for household aquarium, ornamental fish tanks, and hydroponics systems

40. Fluval M200 Submersible Heater, 200-Watt Heater for Aquariums up to 65 Gal., A784 -Pet Supplies

By Fluval

  • Aquarium heater that blends into the aquarium environment with built-in reflective technology that mirrors the surrounding colors
  • Computer-calibrated thermostat and easy-to-adjust temperature control dial
  • Shock resistant Borosilicate glass and high density ceramic heat sickness
  • Easy to install with slim profile tube for easy placement

Related Posts :

41. Fluval M50 Submersible Heater, 50-Watt Heater for Aquariums up to 15 Gal., A781 -Pet Supplies

By Fluval

  • Aquarium heater that blends into the aquarium environment with built-in reflective technology that mirrors the surrounding colors
  • Computer-calibrated thermostat and easy-to-adjust temperature control dial
  • Easy to install with slim profile tube for easy placement
  • Shock resistant Borosilicate glass and high density ceramic heat sick
  • 50-watt heater suitable for freshwater and saltwater aquariums up to 15 gallons with a 3-year warranty

42. Orlushy 50W Mini Submersible Aquarium Heater with External Temp Controller and Built-in Thermometer for Small Fish Tank -Pet Supplies

By Orlushy

  • 50 Watt Aquarium Heater: For 2-10 gallons fish tank, 50W aquarium heater, voltage 110V, power cord 5(ft), the temp can be set to the values ranging from 65 to 93°F, please choose the right wattage aquarium heater according to our size chart
  • External controller: This heater is designed to be the external controller, and users can change the temperature without having to get your hands wet or without having to take the heater out of the aquarium, providing great convenience
  • Application: The heater must be fixed fully submersible in water horizontally or vertically, can be applied in glass, plastic tank, fish bowl and square tank
  • Adjustable Temp: To set the desired temperature ranging from 65-93℉by pressing the “set” button, cyclic adjustment, stabilizing the target temperature and small in temp exactness, without worries about what the temperature really is
  • Otherwise, if the actual temp is below the set temp, the heater will restart to heat up the water
  • Digital & Smart: The heater is equipped with built-in thermometer, when the actual temp is above the set temp, the heater will stop heating
  • And the LED digital display will show the set temp and actual water temp

43. HiTauing Submersible Aquarium Heater, 200W/300W/500W Silicon Carbide Fish Tank Heater with Over Temperature Protection and Anti-Dry Burning Function, Suitable for Freshwater and Saltwater -Pet Supplies

By HiTauing

  • Easy to Install and DetachableThis 200 watt fish tank heater is suitable for 50-80 gallon fish tank
  • Memory Function,IPX8 Waterproof Digital DisplayThe submersible aquarium heater is equipped with a memory function, If power is shut off,the submersible fish tank heater will keep the temperature settings until it powers on again,no need to worry about pets when you going out
  • You only need to press the controller again and again to adjust the Fahrenheit temperature you need.
  • This fish tank heater can be widely used in freshwater and saltwater fish tanks, turtle tanks, aquariums, and fish markets.
  • Before enabling the heating rod, you need to allow the water to flow so that the heat circulates evenly in the fish tank.
  • Save heating time and energy
  • 30% Energy Saving and Fast Heat ConductionThis 200W aquarium heater has two built-in silicon carbide heating tubes
  • Over-temperature Protection and Anti-dry Burning Function Automatic constant temperature function, Temperature Range is 68℉- 93℉
  • Silicon carbide is a conductor with fast heat conduction and strong stability, which can quickly transfer heat and then dissipate it
  • You can easily put the thermostat heater on the wall of the fish tank
  • The silicon carbide material can make the heat conduction very stable and dissipate heat evenly
  • Explosion-proof Silicon Carbide Aquarium HeaterThe adjustable aquarium fish tank water heater is made of explosion-proof quartz glass material and a high-temperature resistant nickel-chromium heating wire with silicon carbide heat conduction
  • The four corners of the shell are fixed by screws
  • When water temperature is 1°F higher than the set temperature, the aquarium heater will automatically stop heating; when water temperature is 1°F lower than the set temperature, fish tank heater will restart heating
  • The silicon carbide material is filled between the heating wire and the glass tube
  • The shell has three powerful suction cups
  • Easy to disassemble and clean up the impurities inside the aquarium heater
  • And the stronger black shell is a high temperature resistant ABS material which protect the fish, your aquatic organisms and you from scalding.
  • The IPX8 waterproof digital display can clearly display the set temperature and the actual temperature reading
  • When aquarium fish tank heater leaves water, the heating rod will automatically cut off the power to stop heating, and the display will display “E1”.

44. AQQA Aquarium Heater, 100W 200W 300W 500W 800W Quartz Glass Submersible Heater with LED Temperature Display and External Temp Controller for Freshwater and Saltwater (500W for 66-135 Gallon Tank) -Pet Supplies

By AQQA

  • SAFE& DURABLE: Made of heat-resistant quartz glass and PC plastic cover, double seal material, providing explosion-proof, shatterproof, IP68 waterproof, much safer for human and your lovely fishes, your pets will no longer fear the winter
  • When the temperature is reached 93℉(34℃), it will stop work, the blue light will be constant on
  • It will restart to heating when the water temp is 1℉(1° C ) off the set temp
  • AQQA provide 12 Month Warranty and 24 Hour Professional After-sales Service
  • When the heater exposed to air and is not fully submerged, then display E1 fault
  • EASY INSTALLATION: Easy and quick installation, submersible fish tank heater, vertical or horizontal placement using attached adjustable hanging rack and 2 suction cups
  • DUAL TEMP DISPLAY: LED display on the middle of the controller front side, Current Temp and Set Temp
  • If power is shut off, the heater will keep the temperature settings until it powers on again
  • INTELLIGENT AUTOMATIC HEATING: Automatic constant temperature function, design with External Temperature Controller, Temperature Range is 68℉-93℉(20 °C-34°C), hold down the “+””-” set button at the same time for 5 seconds, switch easily from Celsius to Fahrenheit
  • NOTE: Please make sure that the heater is completely submerged in the water before turning on the power, and install it near the water flowing area to prevent uneven heating
  • WIDE APPLICATION: Suitable for freshwater and saltwater aquariums
  • NOTE: Before you clean the aquarium or change water, please cut off the heater power, after 10 minute cooling then take out the heater
  • If your heater is working properly, the red light will be constant on
  • Please don’t hesitate to contact us to get help

45. hygger Saltwater Tank Titanium Tube 500 Watt Submersible Pinpoint Aquarium Heater with Digital Thermostat, IC Temp Controller -Pet Supplies

By hygger

  • Recommended for aquariums with 60 to 120 gallons of water capacity.
  • Place it near a strong water flow so that the whole aquarium at the same temperature
  • Control accuracy is +/- 0.5° C.
  • [FULLY SUBMERSIBLE]: Our Fish Tank Heater is fully submersible in water HORIZONTALLY with 2 suction cups can be easily mounted on tank
  • Up is aquarium temperature and down is set temperature
  • Comes with a separate controller where you can easily adjust from low to high without taking out the heater from the aquarium or fish tank.
  • Heater will stop heating when temperature rise exactly to your desired temp
  • As it has a great feature of being anticorrosion, it is perfect for freshwater, saltwater aquariums and reef tanks.
  • [AUTOMATED SHUT OFF SYSTEM]: Temperature can be controlled and set to your desired degree of heat
  • Heating temperature range 32 to 104°F
  • It automatically sets off when it reached the designated temperature of your setting
  • [SHATTERPROOF & ANTICORROSION]: Our Titanium Heater is completely shatterproof as there is NO glass in the construction– it’s made from heavy duty, durable Titanium
  • [TANK CAPACITY]: 500-watt aquarium heater, 12 inches in length
  • [PINPOINT TEMPERATURE]: Build-in external electronic theromstat, it has DUAL LCD display that clearly shows you the temperature setting in either Celsius or Fahrenheit
  • Voltage: 110V

Best Brands

Buying a product from a reputable manufacturer that provides high brand value is one of the most essential things. Based on my research, here are the top brands that make the best aquarium heater.

  • Tetra
  • Orlushy
  • HiTauing
  • hygger
  • AQQA
  • Fluval
  • PULACO
  • FREESEA
  • Eheim
  • BOEESPAT

The Buyer’s Guide

Although the aim of this list is to help you choose the best option for your needs. This guide shall help you make an informed purchase decision. Here are the few things to consider when choosing a aquarium heater.

1. Features

There’s no point in purchasing a aquarium heater that doesn’t solve your usage needs. Sometimes, even the best option wouldn’t have all the options you’d need. That’s why list down all your feature requirements and make sure that the option you’ve chosen comes with all of them.

2. Budget

Budget plays an important role, if it wasn’t for the budget, wouldn’t everyone purchase the most expensive option? However, before you decide the budget, I’d recommend you to make a list of features you’d need. In case a feature you need the most isn’t available in your budget range, then there’s no point in buying it, is there?

My advice is to make sure that the product has all the features you need then decide the budget. If a product you’ve chosen isn’t having all the features you need, then you should consider increasing your budget.

3. Value For Money

There are times when you shall come across various aquarium heater that shall have all the features you need. However, the price difference shall exist. In a situation like this, it is recommended to value each feature and make sure that you’re not overpaying for a feature you wouldn’t use.

4. Brand, Customer Support, & Warranty

Purchasing a product from a reputed brand is very important. Not only does it guarantee high-quality build, but you also get much better customer support.

You should also make sure that it has a decent warranty, it is really helpful in case a product breaks down due to manufacturing defects. Also, repairs during warranty are generally free of cost (depends on service terms).

5. Individual Product Reviews

You don’t have to watch individual reviews of each aquarium heater in this list. However, pick 2-3 options that have all the technical aspects according to your usage needs. Once you’re ready with it, go to YouTube/Amazon and look at video/customer reviews to make sure that the existing buyers are satisfied with the product.

The FAQs

Which is the best aquarium heater?

According to my research, the BAOSHISHAN 300L Aquarium Chiller 75gal 1/3 HP Fish Tank Chiller Special Quiet Design Refrigeration Compressor for hydroponics Water Weeds Axolotl Jellyfish Coral Reef Tank Shrimp (75gal/300L) is the best option.

Is BAOSHISHAN a reliable brand?

It’s one of the best brands, not only does it make the top-rated aquarium heater, but it also is known for its exceptional service.

Which is the cheapest yet powerful aquarium heater?

According to me, the Aquarium Heater 500W/800W/1000W/1200W, Double Heating Tubes, Fast Heating and Power Saving, External Digital Temp Controller, Used for 50-160 Gallon Fresh/Salt Water Fish Tanks(1200W) is one of the cheapest options available and yet has all the features.

Are there deals going on?

A few of the options in our article are currently available for a discounted price. However, check out the product listing to find more information.

What brands should I consider when purchasing?

Based on my research, these are the top 5 brands: BAOSHISHAN, Poafamx, Eccotemp, EcoSmart, and TINTOR.

Should I buy it online or go to an offline store?

Shopping online comes with a few advantages such as discounted pricing, quick delivery at home. However, if you’re in a hurry or can find the product for a cheaper price in the offline market, consider visiting the offline store.

The Verdict

Choosing the right product isn’t easy and for many of them it could be a time consuming task. However, with this guide, my aim is to help you guys find the perfect aquarium heater for your needs.

I’ve done a huge research to ensure that options I’ve listed are among the best. Like mentioned above, I also interviewed many experts to make sure that the enlisted models are high quality.

I hope that you’re able to find the right aquarium heater for your usage. If you are still struggling to find one, feel free to comment below or contact me.