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 [star rating='5']
- Quality [star rating='4.7']
- Value For Money [star rating='5']
- Affordability [star rating='3.7']
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)
PRICE AVAILABLE ON AMAZON
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 [star rating='4']
- Quality [star rating='4.1']
- Value For Money [star rating='3.3']
- Affordability [star rating='4.1']
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)
PRICE AVAILABLE ON AMAZON
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 [star rating='4.5']
- Quality [star rating='4.2']
- Value For Money [star rating='4.7']
- Affordability [star rating='5']
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)
PRICE AVAILABLE ON AMAZON
Here Are Some Other Related Aquarium Heaters
4. Aqueon 100101230 Flat Submersible Heater, Black,7.5W, up to 3 gallon
User Ratings: 58 11
Aqueon 100101230 First Impressions
"FIVE STARS!"You don't have to worry about wide temperature swings with this unit. I have a 10gallon tank that was at 72 degrees. It took about an hour to reach 80f, which is fairly quick. Awesome chiller, perfect for Hydroponics. All seem to vary between 1-2 degrees of each other which doesn't concern me much. The setting always stayed the same. When i installed them, i let them sit in the tanks without power for 6-24 hours.
- Aqueon 100101230 Flat Submersible Heater, Black,7.5W, up to 3 gallon
- Fully submersible
- Vertical or horizontal placement using suction cups that mount to the bottom or side wall of tank
- Quick and easy installation
- Shatterproof construction
- Can be used with glass or acrylic enclosures
- Note: Do NOT operate or leave product plugged in when it is outside of water
- Warms aquarium water up to 6°F above ambient room temperature
- 7.5 Watt works best for 1 to 3 gallon fish tanks
- Manufacture: Central Garden & Pet
- Item Weight: 6.4 ounces
- Product Dimensions: 0.5 x 2 x 5.63 inches
- Editor's Impressions Of The Aqueon 100101230
- Heat Quality [star rating='5']
- Quality [star rating='3.8']
- Value For Money [star rating='4.9']
- Affordability [star rating='3.5']
Aqueon 100101230 Final Thoughts
"5 degrees."The temperature difference was very minor. I hope these suction cups work very well. I am very happy with this purchase. --The heater itself is a bit shorter if your tank is a short one. Seems to keep the temp n the tank fairly regular. It took me a few days slowly turning the dial up to finally get it where I wanted. We received the chiller promptly and put it into use.
Overall Score
4.1
(819 Points)
PRICE AVAILABLE ON AMAZON
5. AQQA Submersible Aquarium Heater,100W/200W/300W/500W/800W Fish Tank Heater,External Temperature Cont...
User Ratings: 89 3
AQQA First Impressions
"Great product."I have a 10gallon tank that was at 72 degrees. I like the fact that it comes with a digital thermometer. I am very happy with this purchase. Bought it as a chiller for the k40 CO2 laser. It's pretty noticeable, but I don't really care. The setting always stayed the same. Pressing and holding the button for 5 seconds changes it from F to C readouts.
- 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
- 【Explosion-proof Quartz Glass Aquarium Heater Durable and Safer】The 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.
- 【Temperatures Ranges 59℉ to 93℉,Automatic Heating】The 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.
- 【LED External Controller with Indicator Light】The 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.
- 【Memory Function,Dry Burning-resistant Protection】Controller 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". When submerged in the water again, the heater will automatically return to normal, no need to unplug the power or reset the controller.
- 【Controller Can Be Installed with Adjustable Hooks】A hook can be installed on the back of the controller to hang on the fish tank. 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.
- Manufacture: AQQA
- Editor's Impressions Of The AQQA
- Heat Quality [star rating='4']
- Quality [star rating='4.7']
- Value For Money [star rating='3.9']
- Affordability [star rating='5']
AQQA Final Thoughts
"Amazing customer service."Keeps the temperature within 1 degree of what you set it to at all times. You don't have to worry about wide temperature swings with this unit. Once I opened the box i noticed the quality of the construction. I got this heater for my 55 gallon aquarium. We would consider a replacement and then we would return the defective unit. This has the best controller that I have found on the market. The heater is easy; turn the dial to set temp and plug in.
Overall Score
4.8
(48 Points)
PRICE AVAILABLE ON AMAZON
6. Lineba 500 Watt Submersible Aquarium Heater, Fish Aquarium Heater with LED Temperature Display for F...
User Ratings: 73 27
Lineba First Impressions
"Great concept."Keeps the temperature within 1 degree of what you set it to at all times. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. The temperature has been holding all day, even in a colder room. I think it works well to not stand out like other heaters. It is a bonus that the heater is titanium. Once I opened the box i noticed the quality of the construction. I have it set to 81F to get a 77F water temp.
- Lineba 500 Watt Submersible Aquarium Heater, Fish Aquarium Heater with LED Temperature Display for Fish Tank
- *Very easy and reliable to use. After well installing the aquarium heater and the thermometer, you just need to set the desired heating temp, then it can ensure the temperature constant at the set point with the blue indicator light,as it can adjust heating power automatically if there is any water temperature variation.
- *Made of Durable Titanium alloy Tube-Our seawater resistant titanium aquarium heater is good for use both in salt water and fresh water, long service life.
- *Antiflaming heater cover can prevent fish from going too close to the heater.
- *Very compact small size, easy to hide in the tank. Comes with 2 suction cups to keep the heater in place of tank.
- *There is indicator light to show the heating status on the LED screen through the temperature control. You can long-press the 'Set' key to shift degree unit between Celsius and Fahrenheit.
- Manufacture: LINEBA
- Product Dimensions: 5 x 2.3 x 1.3 inches; 13.76 Ounces
- Editor's Impressions Of The Lineba
- Heat Quality [star rating='4.6']
- Quality [star rating='3.1']
- Value For Money [star rating='2.9']
- Affordability [star rating='4.7']
Lineba Final Thoughts
"Excellent build quality."--The heater itself is a bit shorter if your tank is a short one. I got this heater for my 55 gallon aquarium. I bought a similar one at the pet store and it barely worked. After several weeks of running the heater. I have 3 of the Fluval heaters, in various sizes. I'm not a big fan of the big glass tubes. Thanks for the great customer service!
Overall Score
3.9
(8 Points)
PRICE AVAILABLE ON AMAZON
7. Famus Aquarium Fish Tank Heater Protective Case Detachable Designed Cover with Suction Cups(42.5 cm)...
Famus First Impressions
"Seems very well built."It is a bonus that the heater is titanium. If the blue light is flashing it means the heater is not fully submersible. Once attached to the tank wall I've had no issues with it coming off. Pressing and holding the button for 5 seconds changes it from F to C readouts. There is a misconception on the internet that the heater isn't fully submersible. I like to keep it at 72 and from my thermometer it is reading at exactly 72. You don't have to worry about wide temperature swings with this unit.
- Famus Aquarium Fish Tank Heater Protective Case Detachable Designed Cover with Suction Cups(42.5 cm)
- Manufacture: Famus
- Editor's Impressions Of The Famus
- Heat Quality [star rating='2.9']
- Quality [star rating='3.4']
- Value For Money [star rating='4']
- Affordability [star rating='2.5']
Famus Final Thoughts
"Easy to unpack."This heater warmed it right up and now my Betta and guppies are more active. My heater is fully submerged underwater and works perfectly fine. I bought a similar one at the pet store and it barely worked. The temperatures are pretty accurate. Temperature is slightly off by running a little warmer. I use a 50 for a 5 gal and a 10 gal tank. I got this heater for my 55 gallon aquarium.
Overall Score
3.0
(1 Points)
PRICE AVAILABLE ON AMAZON
8. HITOP Adjustable Submersible Aquarium Heater, 50W 100W 120W Fish Tank Heater for 5-35 Gallon (50W fo...
User Ratings: 68 7
HITOP First Impressions
"Until the next time."Come on Fluval, expect better from you. We wish the controls were available in Farenheit also to make things a little easier. Easy to read the temp and know exactly how warm the water is. There is no protection from it banging on the glass tank. I was worried about the quality but I am thoroughly impressed with this heater! The temperature has been holding all day, even in a colder room. This is a powerful heater that holds temperature very well.
- HITOP Adjustable Submersible Aquarium Heater, 50W 100W 120W Fish Tank Heater for 5-35 Gallon (50W for 5-10 Gallon)
- [Size]: 100W aquarium heater with cover Height:9.5in/diameter:1.5in. Situable for fish tank 10-35gallon(fresh water and seawater).
- [Safety design]: This is a glass aquarium heater with a strong protective cover, which can effectively prevent fish or turtles from hitting and touching. Note that this protective cover cannot be removed.
- [Steady Temperature-control]: After the temperature is set, this fish heater will automatically turn on and off to maintain the water temperature at the set temperature.
- [Easy to use and adjustable]Adjustable fish tank heater from 68°F to 93°F , The best temperature range for most fishes is 76°F-80°F.
- [Attention]:Because of the protective cover, the volume will be larger than the conventional glass heater, but the protective cover is tri-prism shape, which can save some space.
- Manufacture: Haisen
- Editor's Impressions Of The HITOP
- Heat Quality [star rating='3.4']
- Quality [star rating='3.8']
- Value For Money [star rating='3.8']
- Affordability [star rating='3.8']
HITOP Final Thoughts
"No worries, though."The bonus digital thermometer it came with has been super helpful, and is accurate. You program it for temperature you want your tank to be. Well I bought a second one took me only one trying to get the right temperature. Sometimes you may have to tinker around with the dial. The heater protector was very heavy plastic and slim lined which is great. So if you set it to 78 degrees, the heater will not kick on until it reads 76. I left seller feedback yesterday but have yet to hear from the seller.
Overall Score
4.3
(394 Points)
PRICE AVAILABLE ON AMAZON
9. IOAOI Aquarium Heater for Fish Tank 50W for up to 20 Gallons Tanks Shatterproof for Both Marine and ...
User Ratings: 67 9
IOAOI First Impressions
"None so far."This this is amazing and is worth the money. The heater is easy; turn the dial to set temp and plug in. --The heater itself is a bit shorter if your tank is a short one. And I get to keep the first one I bought! So if you set it to 78 degrees, the heater will not kick on until it reads 76. Awesome chiller, perfect for Hydroponics. Pressing and holding the button for 5 seconds changes it from F to C readouts.
- IOAOI Aquarium Heater for Fish Tank 50W for up to 20 Gallons Tanks Shatterproof for Both Marine and Fresh Water Engineering Plastic Tube Outside and Stainless Steel Tube Inside Temperature Adjustable
- This 50W aquarium heater is fitted with stainless steel tube inside and engineering plastic tube outside to protect against damage. No glass components. Equipped with dry-fire protection device.
- Temperature range of this tank heater is from 68℉-88℉, adjustable via a simple knob on the top. +/- 1 ℉accuracy. The light will go on while it’s working and off while not.
- Can be placed vertically or horizontally. BUT NOT TILTED. It will not operate if the bottom is higher than the top. Must be FULLY submerged.
- Can be used both in freshwater and saltwater. Will not rust.
- Dimensions of this fish tank heater: Height 8.6 in, Width 0.8 in of the tube and 1.2 in of the top. 6 ft cord.
- Manufacture: IOAOI
- Editor's Impressions Of The IOAOI
- Heat Quality [star rating='3.6']
- Quality [star rating='4.2']
- Value For Money [star rating='4.5']
- Affordability [star rating='4']
IOAOI Final Thoughts
"Will not switch!"I have a 10gallon tank that was at 72 degrees. It took me a few days slowly turning the dial up to finally get it where I wanted. The suction cups are large, high quality and seem to stick great. The design is sleek and modern looking. I like to keep it at 72 and from my thermometer it is reading at exactly 72. After several weeks of running the heater. I used to try those other cheap heaters sold on amazon.
Overall Score
4.3
(139 Points)
PRICE AVAILABLE ON AMAZON
10. ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat
User Ratings: 73 5
ViaAqua VA 300Q First Impressions
"Highly recommended."The temperature lights up so it's very easy to read. The heater is super thin and the reflective surface is interesting. Was very impressed with the quality of this heater. The line is there due to regulations in certain countries. They shipped us the upgraded version that also heats! I use this little heater for my 10 gallon quarantine tank. I used to try those other cheap heaters sold on amazon.
- ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat
- High quality quartz glass
- Fully-submerisble
- Visible temperature setting
- For use in fresh or saltwater aquariums
- Manufacture: Commodity Axis
- Product Dimensions: 1.13 x 1.13 x 14.8 inches; 10.88 Ounces
- Editor's Impressions Of The ViaAqua VA 300Q
- Heat Quality [star rating='4']
- Quality [star rating='3.8']
- Value For Money [star rating='3.6']
- Affordability [star rating='3.9']
ViaAqua VA 300Q Final Thoughts
"Great concept."It took about an hour to reach 80f, which is fairly quick. Those turned out to be a hit and miss. If the blue light is flashing it means the heater is not fully submersible. I got the 200W variant for my 54 gallon corner tank that's housing goldfish. I have only had minor problems with the suction cups. I have a 10gallon tank that was at 72 degrees. I think it works well to not stand out like other heaters.
Overall Score
4.5
(1104 Points)
PRICE AVAILABLE ON AMAZON