Editor's Choice - Our Favorite SunGrow Aquarium Heaters

1. SunGrow Betta Plakat Heater, 10-Watt Submersible Aquarium Water Heater for Small Tanks (1.5-Gallons)...

User Ratings: 72 8

SunGrow First Impressions

"5 gallon tank."

I went ahead and went with the the larger 300W for my 45 gallon. The heater is super thin and the reflective surface is interesting. The bonus digital thermometer it came with has been super helpful, and is accurate. We wish the controls were available in Farenheit also to make things a little easier. Bought it as a chiller for the k40 CO2 laser. Pressing and holding the button for 5 seconds changes it from F to C readouts. Beware, but we are hoping for a good outcome!

  • SunGrow Betta Plakat Heater, 10-Watt Submersible Aquarium Water Heater for Small Tanks (1.5-Gallons), with Preset Temperature Capability, Suction Cups Included
  • ✔ KEEP YOUR BETTA HEALTHY --- To ensure that your betta has optimal health, you need to provide her with warm water. The water in the tank should not go below 74°F for optimal comfort and metabolic efficiency of your crown tail betta. The cold temperature for this gourami family fish will make her lethargic, stressed, and miserable.
  • ✔ AUTOMATICALLY REACHES THE PRESET TEMPERATURE --- The smart SunGrow heater for this freshwater fish has a built-in electronic thermostat to automatically maintain water around 72°F which is ideal for most tropical fish. It saves you from the trouble of constantly keeping a check on the temperature of your tank. It will automatically shut down when it will reach the desired temperature, no manual adjustment is needed.
  • ✔ CREATES THE IDEAL CONDITIONS FOR FLORA AND FAUNA --- The eastern Asian fish species can survive in a freshwater environment. This heater by SunGrow will create ideal conditions for them. A few preconditions are required to allow it to run with maximum efficiency. The heater must be completely submerged in the water and the indoor temperature should be around 62-74°F.
  • ✔ SUCTION CUPS INCLUDED FOR EASY INSTALLATION ---- Easily install the SunGrow Heater vertically or horizontally by using the built-in suction cups to attach to your tank. The best location to place the heater is in the stream of a powerhead or near the water flow, such as the outlet (or inlet) from the filter. This way the heat is evenly distributed throughout your tank.
  • ✔ FULLY SUBMERSIBLE WATER HEATER--- This 10-watt aquarium heater supports 1.5 gallons (5 liters) fish tank. Its exterior is designed with tougher than glass and the sealed polymer can be submerged into your tank. The heating element is surrounded by a thick plastic to ensure the protection of these caudal-finned betta fish.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Heat Quality [star rating='4.8']
  • Quality [star rating='4.7']
  • Value For Money [star rating='4.2']
  • Affordability [star rating='3.8']

SunGrow Final Thoughts

"Temperature!"

It would stick out of my 30 g wide tank if I were to put it vertical. It took about an hour to reach 80f, which is fairly quick. My fish likes to get close to it and he has never been hurt by it. Was very impressed with the quality of this heater. I left seller feedback yesterday but have yet to hear from the seller. I will be ordering more of these in the future. We received the chiller promptly and put it into use.

Overall Score
4.4

[star rating="4.4"]
(71 Points)

2. hygger 500 Watt Aquarium Heater with LED Digital Temperature Controller, Submersible Fish Tank Heate...

User Ratings: 65 11

hygger HG-925 First Impressions

"Perfect heater for my 2."

I am very happy with this purchase. I am very happy with this purchase. I emailed the email it says to and told them. I am very happy with this purchase. No biggie, but annoying nonetheless. When i installed them, i let them sit in the tanks without power for 6-24 hours. But my guys don't read them and don't listen!

  • hygger 500 Watt Aquarium Heater with LED Digital Temperature Controller, Submersible Fish Tank Heater for 60-120 Gallon
  • This fully submersible aquarium heater enables memory function and over heat protection. Auto shut off when over-heats, resets when it cools down
  • Made with premium quartz and double sealed by black protective guard, this fish tank heater is resistant to corrosion, and protect fish and other livestocks from punching and scalding
  • Build-in external IC temp controller, easy to read blue LED digital number shows real time water temperature. Heat indicator lights on red when fish heater start to heat and turns in yellow once it reach set temperature. Temp accuracy is +/- 1°F
  • Easy to set temperature without getting hands wet. Temperature can be precisely adjusted from 61 to 90°F (16°C ~ 32°C). Just press set button to desired temperature, it blinks 3 seconds and begins to work
  • 500 watt aquarium heater, voltage 110-120V, suitable for tank capactiy 60-120 gallon freshwater and saltwater aquariums
  • IP68 100% Waterproof, Fully Submersible
  • Dual Protection - Durable Quartz Tube, resistant to corrosion; Double sealed material and protective container for scald preventing and anti punching Accurate temperature control from 61°F to 90°F (16°C ~ 32°C)
  • Easy to read blue LED digital display shows water temperature
  • Manufacture: hygger
  • Editor's Impressions Of The hygger HG-925
  • Heat Quality [star rating='3.6']
  • Quality [star rating='4']
  • Value For Money [star rating='3.7']
  • Affordability [star rating='4.8']

hygger HG-925 Final Thoughts

"Highly recommended."

I had a thermometer on opposite side of tank and the heater was dead on true. No biggie, but annoying nonetheless. You program it for temperature you want your tank to be. Sometimes it gets outside of it's ability to cool but only within a few degrees. Two inches above that is a waterline for maximum. I recieved this product without the instructions or the added thermometer. This product came in the nick of time!

Overall Score
4.2

[star rating="4.2"]
(76 Points)

3. Hydor Submersible Glass Aquarium Heater - Original Theo

User Ratings: 56 18

Hydor T11702 First Impressions

"Highly recommended."

This has been in my fish tank for a few months now and it's been absolutely perfect! Checked the accuracy of the heater with an infrared thermometer. We would consider a replacement and then we would return the defective unit. So far I like it setup was super easy. I adjusted the set temperature a little lower to be more in the range I wanted. Sometimes it gets outside of it's ability to cool but only within a few degrees. It's only been set up for a month we'll see how well it does in a few months.

  • Hydor Submersible Glass Aquarium Heater - Original Theo
  • High resistance - the first shatter proof heater
  • Shock resistant
  • Position vertical, horizontal and completely submerged
  • Graduated scale for precise maintenance of set temperature
  • No damage in case of running dry
  • Manufacture: Hydor USA, Inc.
  • Product Dimensions: 3.5 x 2 x 10 inches; 8 Ounces
  • Editor's Impressions Of The Hydor T11702
  • Heat Quality [star rating='3.1']
  • Quality [star rating='4.5']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='3.7']

Hydor T11702 Final Thoughts

"I like the size."

Was very impressed with the quality of this heater. It took me only two tries to get it to the correct temperature. Easy enough to let it run all the time. I dont know, and havent tried just yet. Beware, but we are hoping for a good outcome! Also were nice along the whole process. I wouldn't buy any other heater, unless one of these stops working.

Overall Score
3.8

[star rating="3.8"]
(1809 Points)

4. Sheye 500W Aquarium Heater, Fast Heating Submersiber Thermostat, Fish Tank Heaters with LED Digital ...

User Ratings: 68

Sheye First Impressions

"This heater works great."

Takes a little while to drop the temps if it is hot in the garage. It comes with a hanging kit and can be secured on the edge of the tank. The line is there due to regulations in certain countries. I waited a little bit to write the review so it could be accurate. Once attached to the tank wall I've had no issues with it coming off. I contacted the manufacturer and they sent me a new unit in less than a week! I left seller feedback yesterday but have yet to hear from the seller.

  • Sheye 500W Aquarium Heater, Fast Heating Submersiber Thermostat, Fish Tank Heaters with LED Digital Display and External Temperature Controller, for Salt/Fresh Water (Stainless Steel)
  • Safe & Reliable: Accurate temperature control making the temperature difference within ±1℃/±2ºF; automatically shut-off the power to avoid overheating and damage, keeping your fish healthy.
  • Rapid Heating: Aquarium heaters is made of high quality Titanium metal, high heat transfer efficiency and short heating time. 500 watts is ideal for large aquariums of 60-150 gallons.
  • Easy Installation: Vertical or horizontal installation and ensure the device is fully submerged underwater.
  • 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.
  • Wide Compatibility: The fish tank aquarium heater applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems.
  • Manufacture: Sheye
  • Editor's Impressions Of The Sheye
  • Heat Quality [star rating='5']
  • Quality [star rating='3.5']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='3.8']

Sheye Final Thoughts

"Peace out."

--The cylinder or rod diameter is bigger. This heater works, but the dial it isn't very accurate. I appreciate the exterior temp readout and control module. They shipped us the upgraded version that also heats! Come on Fluval, expect better from you. It took about an hour to reach 80f, which is fairly quick. 210 gallon ones and one 90 gallon bow front tank.

Overall Score
4.4

[star rating="4.4"]
(11 Points)

5. Inkbird Aquarium Heater with Probe Thermostat Fish Ornamental Shrimp Reef Tanks 24 Hours Double Time...

User Ratings: 75 6

Inkbird First Impressions

"I like this heater."

The temperatures are pretty accurate. The suction cups are large, high quality and seem to stick great. This is only day one though, so I shall keep an eye one it. It would stick out of my 30 g wide tank if I were to put it vertical. I got this heater for my 55 gallon aquarium. Well I bought a second one took me only one trying to get the right temperature. The cover over the heating tubes is great, the turtles claws can't damage the tube.

  • Inkbird Aquarium Heater with Probe Thermostat Fish Ornamental Shrimp Reef Tanks 24 Hours Double Time with Day Night Automatic Temperature Controller
  • 【Two Heating Plug】 Temperature control mode: on / off control. Please note that it is just a heating controller with no cooling function. Both plugs can control heating. The probe comes with a suction tray, which can be easily installed on the water tank.
  • 【Applicable scene】Because it has the powerful function of corrosion protection, it is very suitable for fresh water, sea water aquarium, coral cylinder, ornamental shrimp and tropical fish.
  • 【Dual Time Cycle Setting】Different daytime and night temperatures can be set within 24 hours depending on the physical needs of animals and plants.
  • 【LED display screen】Plug-and-play products are designed with a dual liquid crystal display that provides a temperature display of Celsius or Fahrenheit, capable of displaying.
  • 【Different function】Temperature calibration, over-temperature sensor fault alarm(over-temperature and sensor fault alarm). Maximum output load: 1100 W (110 V).
  • Manufacture: Inkbird
  • Editor's Impressions Of The Inkbird
  • Heat Quality [star rating='3.8']
  • Quality [star rating='3.6']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

Inkbird Final Thoughts

"Peace out."

I would definitely recommend this product. The temperatures are pretty accurate. If the blue light is flashing it means the heater is not fully submersible. Sometimes it gets outside of it's ability to cool but only within a few degrees. I got the 200W variant for my 54 gallon corner tank that's housing goldfish. I dont know, and havent tried just yet. It does blend well in some setups and may look bulky in others.

Overall Score
4.5

[star rating="4.5"]
(944 Points)

6. Uniclife Aquarium Heater Submersible with Thermometer, 200 Watt for 50 Gallon Fish Tank

User Ratings: 55 8

Uniclife First Impressions

"Just bought a second one!"

The temperature gauge is fairly accurate in my 55 gallon tank. Beware, but we are hoping for a good outcome! At this time I highly recommend this product. When i installed them, i let them sit in the tanks without power for 6-24 hours. I have 3 of the Fluval heaters, in various sizes. I got a hold of Amazon, who put me in touch with the seller. It took me only two tries to get it to the correct temperature.

  • Uniclife Aquarium Heater Submersible with Thermometer, 200 Watt for 50 Gallon Fish Tank
  • Ideal for 25-50 gallons fish tanks, can be installed in both fresh and saltwater.
  • Red rotatable knob on top for adjusting the temperatures between ranges of 68°F-93°F. Visible temperature displayed allows accurate temperature maintain.
  • Water-tight with IP68 sealing workmanship. Fix the heater tightly to the tank in vertical or horizontal with 3 strong suction cups. Shatterproof 2 mm extra thick quartz glass prevents electricity leakage and scratching. Measures 11.2" x 1" (L x D).
  • Come with Uniclife aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1(The color of number will change to blue to indicate the temperature).
  • By rotating the Red knob at the top you can simply set the temperature from 68 - 93°F.
  • The red indicator light on while heating, automatic shut-off when reach the temp.
  • The aquarium glass submersible heater must be fully immersed.
  • Install it either vertically or horizontally by attaching the suction cups to the glass of the tank.
  • Manufacture: Uniclife
  • Editor's Impressions Of The Uniclife
  • Heat Quality [star rating='4.9']
  • Quality [star rating='4.1']
  • Value For Money [star rating='3.7']
  • Affordability [star rating='4.5']

Uniclife Final Thoughts

"5 degrees."

I was worried about the quality but I am thoroughly impressed with this heater! The design is sleek and modern looking. They shipped us the upgraded version that also heats! The cover over the heating tubes is great, the turtles claws can't damage the tube. I would definitely recommend this product. My heater is fully submerged underwater and works perfectly fine. The heater is being used in a 40 gallon breeder.

Overall Score
4.2

[star rating="4.2"]
(58 Points)

7. FREESEA Aquarium Heater Fish Tank Submersible Heater (50W/75W/100W) with LED Temperature Display

User Ratings: 68 7

FREESEA FS28-50W First Impressions

"Until the next time."

The controller is easy to use, very accurate and reliable. I have only had minor problems with the suction cups. Personally for me the housing doesn't bother me. The setting always stayed the same. My fish likes to get close to it and he has never been hurt by it. The line is there due to regulations in certain countries. Per my thermometers, they are all staying constant.

  • FREESEA Aquarium Heater Fish Tank Submersible Heater (50W/75W/100W) with LED Temperature Display
  • ★ Temperature range: 59°F~94°F, display Fahrenheit °F, this heater is designed for1~10 gallons tank.
  • ★ 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.
  • ★ 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.
  • ★【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. 12 Month Warranty and 24 Hour Professional After-sales Service.
  • Manufacture: Guang Zhou City Freesea Industrial Co.,Ltd
  • Product Dimensions: 2.5 x 1.5 x 3.5 inches; 8.15 Ounces
  • Editor's Impressions Of The FREESEA FS28-50W
  • Heat Quality [star rating='4.7']
  • Quality [star rating='3.7']
  • Value For Money [star rating='3.7']
  • Affordability [star rating='3.3']

FREESEA FS28-50W Final Thoughts

"So far so good."

My heater is fully submerged underwater and works perfectly fine. Maintains it well except when the weather is already warm then it over heats it. I use this little heater for my 10 gallon quarantine tank. Seems to keep the temp n the tank fairly regular. You program it for temperature you want your tank to be. The cover over the heating tubes is great, the turtles claws can't damage the tube. You program it for temperature you want your tank to be.

Overall Score
4.3

[star rating="4.3"]
(2933 Points)

8. boxtech Aquarium Heater, 50W/100W/300W Explosion Proof Submersible Thermostat with Adjust Knob and 2...

User Ratings: 69 8

boxtech First Impressions

"Best addition to my tank."

There is no protection from it banging on the glass tank. Sometimes you may have to tinker around with the dial. I got this heater for my 55 gallon aquarium. Awesome chiller, perfect for Hydroponics. The heater is easy; turn the dial to set temp and plug in. 210 gallon ones and one 90 gallon bow front tank. I got the 200W variant for my 54 gallon corner tank that's housing goldfish.

  • boxtech Aquarium Heater, 50W/100W/300W Explosion Proof Submersible Thermostat with Adjust Knob and 2 Suction Cups Suit Marine Saltwater and Freshwater
  • Fish Tank Heater: 300W aquarium heaters suit for 30 - 80 Gallon fish tank. Voltage:110V, power cord is 5.57ft, Max deep water immersion 20 inch/1.7 FT
  • Correct installation: Stick the heater vertical onto the tank side near the water intake or on the way of water flow.(This way the heater can quickly sense the water temperature and make adjustments automatically), Keep the aquarium heater fully submerged in water
  • Fully Automatic Control: Design with External Temperature Controller, Temperature Range is 68 ºF-90 ºF, when water temperature achieve the setting temperature, heater will automatically stop heating, when water temperature is lower than the setting temperature, heater will automatically start heating
  • Quartz Tube Safety Protection: Made of heat-resistant milky quartz Glass and UL-Approved Power Cord, Controller IPX4, Heater IPX8 that make it pretty shatter-proof and Explosion-proof and prevents electricity leakage, service life can be 3 years or more
  • Notice Please: Before you clean the aquarium or change water, pls must cut off the heater power, after 10 minute cooling then take out the heater and regularly clean the scale on the heater
  • Temperature Control: Design with External Temperature Controller, Temperature Range is 68ºF-90ºF, when water temperature achieve the setting temperature, heater will automatically stop heating, when water temperature is lower than the setting temperature, heater will automatically start heating.
  • Voltage:110 V Frequency: 50HZ
  • Led Indicator Light:When it working, the indicator light is red.
  • Manufacture: BOXTECH
  • Product Dimensions: 13.39 x 1.97 x 3.54 inches; 11.99 Ounces
  • Editor's Impressions Of The boxtech
  • Heat Quality [star rating='4.9']
  • Quality [star rating='4.7']
  • Value For Money [star rating='4.6']
  • Affordability [star rating='3.4']

boxtech Final Thoughts

"There was only~0."

You don't have to worry about wide temperature swings with this unit. I was amazed how quickly I got to my temperature I need it 78 degrees. This has been in my fish tank for a few months now and it's been absolutely perfect! You don't have to worry about wide temperature swings with this unit. It is a bonus that the heater is titanium. I have it set to 81F to get a 77F water temp. My fish likes to get close to it and he has never been hurt by it.

Overall Score
4.3

[star rating="4.3"]
(523 Points)

9. 300 Watt Aquarium Heater Fast Heating Titanium Tube Saltwater Fully Submersible Fish Tank Heaters wi...

Periha HF-300W First Impressions

"Highly recommended."

Per my thermometers, they are all staying constant. It's pretty noticeable, but I don't really care. Just be careful and keep an eye on your temp settings when you have kids over! This product came in the nick of time! They shipped us the upgraded version that also heats! Was very impressed with the quality of this heater. There is no protection from it banging on the glass tank.

  • 300 Watt Aquarium Heater Fast Heating Titanium Tube Saltwater Fully Submersible Fish Tank Heaters with LED Digital Temperature External Controller Freshwater Safety Pinpoint Thermostat 53-80 Gallon
  • ✅ STRONG ANTI-CORROSION: The tank heater is made of high-quality, durable titanium alloy, no glass, do not worry, it will be shattered. And its strong anti-corrosion features make it perfect for freshwater, saltwater aquariums, and reef tanks.
  • ✅ SAFE EXTERNAL CONTROL: With external thermostat, no need to take out the heater from the aquarium or tank, easily adjust the temperature you want without getting your hands wet, prevent electric shock & burns, keep you and your family safe.
  • ✅ ACCURATE TEMP CONTROL: LCD display can clearly show the temperature setting in either Celsius or Fahrenheit, just press and hold the “SET” button for 3-4s. Heating temperature ranges from 68 to 93°F(14-34℃). Control accuracy is +/- 0.5° C, providing a constant warm aquarium for your pet fish to stay healthy.
  • ✅ EASY TO SETUP & USE: This heater is fully submersible in water HORIZONTALLY with 2 strong suction cups, not easy to move and drop off, preventing your pets from harm and burning. Place it near a strong water flow to keep the whole tank at the same temperature.
  • ✅ AQUARIUM CAPACITY: 300W stable output power, the heater fits for aquariums with 53-80gallons(300 Liters) of water capacity. We offer a 1-year limited warranty, if you have any questions, pls contact us first, we will respond within 24 hours to solve the problem.
  • Manufacture: Periha
  • Product Dimensions: 11.23 x 0.75 x 0.2 inches; 1.15 Pounds
  • Editor's Impressions Of The Periha HF-300W
  • Heat Quality [star rating='5']
  • Quality [star rating='5']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

Periha HF-300W Final Thoughts

"Love these slim heaters!"

This is only day one though, so I shall keep an eye one it. I waited a little bit to write the review so it could be accurate. I got a hold of Amazon, who put me in touch with the seller. The temperatures are pretty accurate. I am very happy with this purchase. My marina heater takes a few hours. --Temperature adjustment labeling is on top rather than on the rod.

Overall Score
5.0

[star rating="5"]
(9 Points)

10. MONIPA Aquarium Water Chiller w/Submersible Pump 120W 110V Fish Tank Chiller Water Cooler Cooling Ma...

User Ratings: 50 50

MONIPA First Impressions

"7L Imagitarium tank."

Am a totally sold customer and would recommend them to anybody! I wouldn't buy any other heater, unless one of these stops working. I went ahead and went with the the larger 300W for my 45 gallon. I have only had minor problems with the suction cups. They shipped us the upgraded version that also heats! Keeps the temperature within 1 degree of what you set it to at all times. I adjusted the set temperature a little lower to be more in the range I wanted.

  • MONIPA Aquarium Water Chiller w/Submersible Pump 120W 110V Fish Tank Chiller Water Cooler Cooling Machine Crystal Shrimp for Fresh Water Salt Water Plant Tank USA Stock
  • ★Suitable for fish tank size: power<180W & capacity ≤ 30L. Suitable for water flow: 1-3 L / min
  • ★The fish tank water cooler adopts micro computer and semiconductor for cooling, high efficient and low power consumption.
  • ★Aluminum-alloy evaporator, anti-corrosion and durable.
  • ★ Good heat dissipation design at rear. Used with water pump and hose. Suitable for all kinds of cold water tanks.
  • ★This item will ship from USA, delivery time need about 5-8 days. If there is any questions please feel free to contact with us, MONIPA will spare no effort to help you.
  • Manufacture: MONIPA
  • Editor's Impressions Of The MONIPA
  • Heat Quality [star rating='2.3']
  • Quality [star rating='2.8']
  • Value For Money [star rating='3.8']
  • Affordability [star rating='2.2']

MONIPA Final Thoughts

"I like it."

I love the heater otherwise, but I'm afraid some water has gotten inside the heater. I emailed the email it says to and told them. Would be great to be able to tune that to. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. It does blend well in some setups and may look bulky in others. I confirm it with my cooking digital probe thermometer. The bonus digital thermometer it came with has been super helpful, and is accurate.

Overall Score
3.0

[star rating="3"]
(2 Points)

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