Editor's Choice - Our Favorite Fluval Aquarium Heaters

1. Fluval M Submersible Heater

User Ratings: 80 3

Fluval A782 First Impressions

"The seller was wonderful."

I think it works well to not stand out like other heaters. If the water runs low or air gets in the heater shuts off. I have only had minor problems with the suction cups. They promptly fixed the issue without any delays or drama. This has the best controller that I have found on the market. I will be ordering more of these in the future. This is a powerful heater that holds temperature very well.

  • Fluval M Submersible Heater
  • 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 sick
  • Easy to install with slim profile tube for easy placement
  • 100-watt heater suitable for freshwater and saltwater aquariums up to 30 gallons with a 3-year warranty
  • Quality heater made in Europe using superior components and construction
  • Sleek and compact
  • Ideal for 100 L (30 US gal) aquariums
  • Manufacture: Fluval
  • Product Dimensions: 1.8 x 4.8 x 14.8 inches; 8.82 Ounces
  • Editor's Impressions Of The Fluval A782
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Fluval A782 Final Thoughts

"5 or even."

I will be ordering more of these in the future. I will definitely be buying another one for my other tanks at bigger one. It does blend well in some setups and may look bulky in others. We would consider a replacement and then we would return the defective unit. Thanks for the great customer service! Pressing and holding the button for 5 seconds changes it from F to C readouts. My marina heater takes a few hours.

Overall Score
4.7


(1578 Points)

Peoples Choice - Other Highly Rated Fluval Aquarium Heaters

2. Fluval Edge 25W Compact Heater

User Ratings: 66 14

Fluval A756 First Impressions

"I got the 100 watt one."

Or better yet, conceal it to the back corner. They promptly fixed the issue without any delays or drama. I like to keep it at 72 and from my thermometer it is reading at exactly 72. It just cycles through to 93f and starts over. Come on Fluval, expect better from you. This is a powerful heater that holds temperature very well. I recieved this product without the instructions or the added thermometer.

  • Fluval Edge 25W Compact Heater
  • Provides even and efficient heat distribution
  • Ideal for use with the Fluval Edge Aquarium
  • Maintains set temperature of 78 degrees Farenheit
  • Polymer exterior prevents breakage
  • Manufacture: Fluval
  • Product Dimensions: 2 x 1 x 11 inches; 6.49 Ounces
  • Editor's Impressions Of The Fluval A756
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Fluval A756 Final Thoughts

"Until the next time."

So when I first received it it didn't work and I was very disappointed. The heater is super thin and the reflective surface is interesting. Two inches above that is a waterline for maximum. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. So when I first received it it didn't work and I was very disappointed. Per my thermometers, they are all staying constant. I will definitely be buying another one for my other tanks at bigger one.

Overall Score
4.1


(264 Points)

3. Fluval A767 Tronic Heater

User Ratings: 63 8

Fluval A767 First Impressions

"Very easy and accurate."

The temperature lights up so it's very easy to read. No biggie, but annoying nonetheless. Awesome chiller, perfect for Hydroponics. Awesome chiller, perfect for Hydroponics. The heater is easy; turn the dial to set temp and plug in. If the water runs low or air gets in the heater shuts off. I emailed the email it says to and told them.

  • Fluval A767 Tronic Heater
  • Fully submersible, easy to use electronic aquarium heater
  • Patented thermal sensor continuously samples water temperatures
  • Fast heat technology quickly achieves optimum temperature
  • Advanced circuitry for safe and reliable heating
  • 100-watt electronic heater, 13 inches long
  • Manufacture: Rolf C. Hagen (USA) Corp.
  • Product Dimensions: 12 x 4 x 7 inches; 11.2 Ounces
  • Editor's Impressions Of The Fluval A767
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Fluval A767 Final Thoughts

"I like this heater."

I noticed my old hygger heater beginning to fail and my wife ordered this one. The heater is super thin and the reflective surface is interesting. After several weeks of running the heater. Come on Fluval, expect better from you. Takes a little while to drop the temps if it is hot in the garage. We wish the controls were available in Farenheit also to make things a little easier. The heater is being used in a 40 gallon breeder.

Overall Score
4.2


(40 Points)

4. Xinrub Akozon Fish Tank Water Cooling Heating Machine, Digital Temperature Controller Regulator Ther...

User Ratings: 21 26

Xinrub First Impressions

"This heater works great."

Well worth the money the first one I bought still works great. I dont know, and havent tried just yet. Personally for me the housing doesn't bother me. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. Temperature is slightly off by running a little warmer. The heater is super thin and the reflective surface is interesting. It does blend well in some setups and may look bulky in others.

  • Xinrub Akozon Fish Tank Water Cooling Heating Machine, Digital Temperature Controller Regulator Thermostat for Aquarium, Aquaculture and Greenhouse US Plug (20L/35L) (35L)
  • 【Adjustable Temperature】This water heater for fish tank adopts digital display and advanced microcomputer intelligent temperature control technology. The water can be cooled and heated to keep the water at a constant temperature.The aquarium water chiller has Celsius and Fahrenheit temperature switching capabilities.The upper temperature limit of this product is 40 ℃, the lower limit temperature is 0 ℃. Semiconductor refrigeration, environmental protection without pollution
  • 【Scope of Application】Low-power design ensures that the water is muted when it is heated or cooled. Suitable for Maximum 35L small-scale fish tank and aquarium aquaculture, refrigeration heating.Also can be used for temperature controlling in seafood aquaculture, transportation, etc.
  • 【Note】When in use, the fish tank temperature controller is forbidden to be inverted or horizontal.When pulling off the plug, you must hold the plug handle, can not pull the power cord, or easy to damage the power cord.When handling, please unplug the power cord plug, use both hands to hold the product at the bottom of the attention not to fall;Please do not place in the TV, audio and other electrical products next to the water machine may cause interference
  • 【Avoid Dangers】 Don't touch the plug with wet hands, otherwise it may cause electric shock or personal injury; Please use a dedicated power outlet,don't use the same socket with other high-power appliances,to avoid causing fire; when not in use for a long time, please unplug the power plug; socket should be placed in a higher position than the fish tank.Pay attention to avoid the flow of water along the power cord plug into the socke.
  • 【Reminder】Please use AC 220V or 110V power supply, do not use other power supply (according to the different regions ,the power supply voltage is not the same and can't be universal, please note). Do not store foreign matter near the vents or insert metal debris, wires, needles, and other foreign objects inside the product or in the product gap.For a long time not to use, please unplug the power plug
  • Manufacture: Xinrub
  • Item Weight: 4.07 pounds
  • Editor's Impressions Of The Xinrub
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Xinrub Final Thoughts

"This heater is excellent."

Would be great to be able to tune that to. I would definitely recommend this product. I got this heater for my 55 gallon aquarium. And I get to keep the first one I bought! Bought it as a chiller for the k40 CO2 laser. But my guys don't read them and don't listen! Very easy to install and the adjustable temperature gauge is pretty accurate.

Overall Score
3.1


(20 Points)

5. Marina Betta Fish Submersible Heater for Fish Tank Aquarium, 1.5 gallons, 11182

User Ratings: 64 10

AquaClear 11182 First Impressions

"So far it seems great!"

I went ahead and went with the the larger 300W for my 45 gallon. Keeps the water consistent and it's easy to adjust! There is no protection from it banging on the glass tank. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. I would definitely recommend this product. This is a powerful heater that holds temperature very well. So when I first received it it didn't work and I was very disappointed.

  • Marina Betta Fish Submersible Heater for Fish Tank Aquarium, 1.5 gallons, 11182
  • 8-watt submersible fish tank heater for aquariums up to 1.5 gallons (5 L)
  • Creates ideal conditions for bettas to live in
  • Made of durable polymer, which is tougher than glass
  • Easy to install in your betta fish tank; use the suction cups to place on the side of the betta tank
  • Automatically reaches set temperature; allowing you to easily maintain your fish aquarium
  • Use in combination with the Marina Standing Thermometer (sold separately) for accurate temperature readings
  • Manufacture: Marina
  • Product Dimensions: 1.7 x 5.3 x 7.1 inches; 6.3 Ounces
  • Editor's Impressions Of The AquaClear 11182
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

AquaClear 11182 Final Thoughts

"That wasn't a good sign."

Those turned out to be a hit and miss. The heater protector was very heavy plastic and slim lined which is great. The heater is super thin and the reflective surface is interesting. The temperature lights up so it's very easy to read. You don't have to worry about wide temperature swings with this unit. Temperature is slightly off by running a little warmer. I am very happy with this purchase.

Overall Score
4.2


(2680 Points)

6. PASTE 300W 500W Aquarium Heater Submersible, 50-90 Gallon Fish Tank Heater with Durable Quartz Glass...

User Ratings: 68 11

PASTE First Impressions

"Same suckers for years!"

Personally for me the housing doesn't bother me. And I get to keep the first one I bought! The temperatures are pretty accurate. It is safe and dependable and comes with a one year warranty. It would stick out of my 30 g wide tank if I were to put it vertical. This does a great job at regulating the temp in my 10 gallon. When i installed them, i let them sit in the tanks without power for 6-24 hours.

  • PASTE 300W 500W Aquarium Heater Submersible, 50-90 Gallon Fish Tank Heater with Durable Quartz Glass and Protective Sleeve 3 Suckers Auto Thermostat for Fresh-Water and Salt-Water…
  • [SAFE AND DURABLE]: High quality Quartz Glass has Explosion-proof Shatterproof Shield-proof Design than conventional glass. Extra protective Sleeve updated for Anti-melting anti punching prevents electricity leakage, multiple sealed material. Provide the safety of living environment for your aquatic creatures
  • [USED WIDELY]: This 300W Fish Tank Heater is suitable for aquariums from 50 to 80 gallons (150-250 liters), is great for both Fresh Water and Marine Water aquariums, and you can choose the appropriate temperature for your fish, turtle, and plants.(The suitable temperature range for most tropical fish is 76°F to 80°F/24°C -27°C )
  • [ACCURATE THERMAL CONTROL]: Set and adjust the desired temperature with the use of the Temperature Controller on the top. The adjusting range is between 68°F~94°F (20°C~34.5°C),which allows for complete control of aquatic climate within a 2-degree difference. The small dot between each 2 numbers means 2 degree. At the same time has the automatic constant temperature function, builds the overheat and the water shortage protection mechanism
  • [INSTALLATION EASILY]: The 300 watt heater aquarium comes with 3 powerful suction cups to help you easily mount the heating rod vertically or horizontally in the tank, preferably horizontally near the water inlet and outlet to ensure that the tank is warm in all corners.
  • [SATISFACTION GUARANTEED]: Our fish tank heater 300 watt 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, our customer service staff will respond within 12 hours and provide professional after-sales service. We hope to hear your advise the first time. Please be sure to leave a comment for us after you purchase. Thank you for your choice.
  • Manufacture: PASTE
  • Product Dimensions: 16.5 x 1.4 x 1.4 inches; 14.67 Ounces
  • Editor's Impressions Of The PASTE
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

PASTE Final Thoughts

"Buy with confidence!"

Two inches above that is a waterline for maximum. It comes with a hanging kit and can be secured on the edge of the tank. Sometimes it gets outside of it's ability to cool but only within a few degrees. This has the best controller that I have found on the market. I was worried about the quality but I am thoroughly impressed with this heater! I have it set to 81F to get a 77F water temp. This product came in the nick of time!

Overall Score
4.3


(67 Points)

7. Zacro Aquarium Heater, 100W Submersible Digital Display Mini Fish Tank Heater with Intelligent LED T...

User Ratings: 67 6

Zacro First Impressions

"That was cool."

I confirm it with my cooking digital probe thermometer. The suction cups are large, high quality and seem to stick great. I went ahead and went with the the larger 300W for my 45 gallon. We received the chiller promptly and put it into use. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. I use this little heater for my 10 gallon quarantine tank. I will definitely be buying another one for my other tanks at bigger one.

  • Zacro Aquarium Heater, 100W Submersible Digital Display Mini Fish Tank Heater with Intelligent LED Temperature Display and External Temperature Controller, for 10-20gal Fish Tank
  • INTELLIGENT TEMPERATURE CONTROL: An intelligent IC chip controls the heater temperature, making the temperature difference within ±2ºF. 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. Provide the best living environment for your aquatic creatures.
  • DIGITAL DISPLAY&REMOTE CONTROLLER: Digital LED display shows real time water temperature. Heating temperature range from 68 to 91°F. The remote-button controller adjusts the temperature without getting your hands wet.
  • AUTOMATIC OVERHEATING PROTECTION: Once set the desired temperature, this fully submersible heater lights on red indicates that it is heating. It will auto shut off once it reach set temperature. If the heating rod temperature reaches 96.8°F (36°C), the heating rod will stop heating. The thermometer can observe the water temperature at any time.
  • SHUT OFF WHEN OUT OF WATER: Please 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 Er. The product uses explosion-proof quartz tube and is equipped with a plastic anti-collision sheath to prevent your aquatic organisms from being injured by touching the heating rod.
  • Our heating rods can be used continuously for up to 10,000 hours and can display the use time. Let you replace the heating rod in time to ensure the continuous water temperature.
  • Keep the heater fully submerged in water.
  • Don’t bury the heater under substrates such as gravels or sands.
  • Keep the remote temp controller away form water.
  • Manufacture: Zacro
  • Editor's Impressions Of The Zacro
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Zacro Final Thoughts

"5 gallon tank."

And I get to keep the first one I bought! Pressing and holding the button for 5 seconds changes it from F to C readouts. Awesome chiller, perfect for Hydroponics. I like to keep it at 72 and from my thermometer it is reading at exactly 72. I will definitely be buying another one for my other tanks at bigger one. I am very happy with this purchase. No biggie, but annoying nonetheless.

Overall Score
4.4


(22 Points)

8. PGFUNNY Aquarium Heater, Adjustable LED Digital Temperature Display Smart Thermostat Betta Fish Heat...

User Ratings: 63 15

PGFUNNY First Impressions

"FIVE STARS!"

It is safe and dependable and comes with a one year warranty. I like the fact that it comes with a digital thermometer. Once attached to the tank wall I've had no issues with it coming off. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. Maintains it well except when the weather is already warm then it over heats it. I'm not a big fan of the big glass tubes. Would be great to be able to tune that to.

  • PGFUNNY Aquarium Heater, Adjustable LED Digital Temperature Display Smart Thermostat Betta Fish Heater, for Betta Tank Heater with Protective Guard
  • 【Fully Automatic Temperature Control Chip】Heater for betta fish have a automatic thermostat 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.
  • 【Water shortage protection】During its heating time, the small aquarium heater must be 100% submerged into the water. This heater automatically shut itself off once it remove from water which ensures the safety of your pet fish.when fully in water again it will return to normal work again
  • 【Digital Display】With led display on the midle of the heater front side, Long press on fish tank heater switch to switch between Fahrenheit / Celsius display. External temperature setting avoids getting hands wet, digital LED display shows real time water temperature. Heating temperature range from 68 to 94°F.
  • 【Suitable for aquarium pets】: Betta Heater Suitable for all kinds of aquarium pets, betta fish, tropical fish, goldfish, ornamental fish and turtles, can work in both brine and fresh water. All shapes and materials betta tank, whether it is glass or plastic, all can be used.
  • 【CE Certification】: The aquarium thermometer made by heat resistant ABS housing, sandy quartz filler and MCH Alumina ceramic heating system, anti explosion & cracking, keep your fish from scalding.This product have certificated by CE, ROHS, FCC certifications.
  • Manufacture: PGFUNNY
  • Editor's Impressions Of The PGFUNNY
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

PGFUNNY Final Thoughts

"And I am glad I did."

--The cylinder or rod diameter is bigger. It's pretty noticeable, but I don't really care. This is only day one though, so I shall keep an eye one it. I wouldn't buy any other heater, unless one of these stops working. The heater is being used in a 40 gallon breeder. I emailed the email it says to and told them. I used to try those other cheap heaters sold on amazon.

Overall Score
4.1


(192 Points)

9. Mylivell Aquarium Heater Submersible Auto Thermostat Fish Tank Water Heater and Adjustable Temperatu...

User Ratings: 70 5

Mylivell First Impressions

"Great concept."

This has been in my fish tank for a few months now and it's been absolutely perfect! The heater is super thin and the reflective surface is interesting. I recieved this product without the instructions or the added thermometer. Keeps the temperature within 1 degree of what you set it to at all times. I think it works well to not stand out like other heaters. Thanks for the great customer service! The suction cups are large, high quality and seem to stick great.

  • Mylivell Aquarium Heater Submersible Auto Thermostat Fish Tank Water Heater and Adjustable Temperature with Suction Cups
  • High Quality: Aquarium heater made of high quality quartz glass, double seal material , advanced design, ensures safe operation.
  • Adjustable Temperature: The temperature of the fish tank heater can be adjusted automatically. Temperature setting range: 20°~34°C(65° F - 93° F), and the display is easy to read.
  • Fully Submersible. Power: 100W. Suggested water volume: 20 gal.
  • Both suiting for fresh or saltwater aquariums, provide a constant warm environment for your tropical fish to stay healthy.
  • Convenient and Safe: Our aquarium heater thermostat has two suction cups for attachment to the fish tank. The polarized plug prevents electrical shock.
  • Mylivell Submersible Aquarium Heaters are one of the most popular way to keep your tank at a steady and controlled temperature, Fish water heater will be your best choice!
  • You will need an aquarium heater to keep your tank in a steady and controlled temperature, as proper temperature range is very important to fish and other Aquatic in winter.
  • Mylivell Submersible Aquarium Heaters are one of the most popular way to keep your tank at a steady and controlled temperature, Fish water heater will be your best choice!
  • Manufacture: Mylivell
  • Product Dimensions: 11.6 x 2.7 x 1.5 inches; 7.2 Ounces
  • Editor's Impressions Of The Mylivell
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Mylivell Final Thoughts

"Highly recommended."

I dont know, and havent tried just yet. Also were nice along the whole process. The line is there due to regulations in certain countries. Takes a little while to drop the temps if it is hot in the garage. But I am single and don't have to worry about this. After several weeks of running the heater. I think it works well to not stand out like other heaters.

Overall Score
4.5


(1559 Points)

10. 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
  • Quality
  • Value For Money
  • Affordability

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


(71 Points)

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