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']

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']

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']

Here Are Some Other Related Aquarium Heaters

4. CNZ EH-300W 300W Aquarium Glass Submersible Heater, 2-Pack

User Ratings: 63 7

CNZ First Impressions

"I have a betta in a 1."

The temperature gauge is fairly accurate in my 55 gallon tank. Am a totally sold customer and would recommend them to anybody! The setting always stayed the same. --The heater itself is a bit shorter if your tank is a short one. This product came in the nick of time! Easy to read the temp and know exactly how warm the water is. Ick for instance detaches from fish at 86 degrees and dies at 89.

• CNZ EH-300W 300W Aquarium Glass Submersible Heater, 2-Pack
• Fully submersible glass heater for reliable aquarium performance
• Set desired aquarium temperature & on/off indicator light confirms operation
• Fast heating and accurate heating temperature range is 68-93F (20-34C)
• On/off indicator light allows simple, visual confirmation of heater operation
• Wattage: 300-watt; Heater Length:14"; Tank Capacity: 75gal; Voltage: 110-120v 60Hz
• Manufacture: CNZ

• Editor's Impressions Of The CNZ
• Heat Quality [star rating='5']
• Quality [star rating='3.4']
• Value For Money [star rating='4.3']
• Affordability [star rating='3.7']

5. 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 [star rating='3.6']
• Quality [star rating='4.9']
• Value For Money [star rating='3.6']
• Affordability [star rating='3.6']

6. LUYS Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatical...

User Ratings: 87 2

LUYS First Impressions

"Very easy and accurate."

No biggie, but annoying nonetheless. This heater is NOT fully submersible. Personally for me the housing doesn't bother me. The temperatures are pretty accurate. The temperatures are pretty accurate. I am very happy with this purchase. Will update my review if any changes occur.

• LUYS Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatically Stop Heating and Over Temperature Protection System, Suitable for Marine Saltwater and Freshwater
• 【Intelligent Water Sensor and Over Temperature Protection】This 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.
• 【Explosion-proof Quartz Material】The 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. And the stronger black protective container is scald-preventing for your aquatic organisms and your safety.
• 【Rapid Heating System】The voltage of this aquarium heater is 100-120V/50-60HZ, power 300W, Universal two-pin plug, heater rod length 12.99 inch, 300W submersible heater for fish tank 26-66 gallon, Temp range: 62-93℉. The heating tube can conduct heat quickly and fully contact with water to achieve rapid heating effect.
• 【Digital LED Display Controller】the external IC temp controller of the fish tank heater can show the water temp with 2 red LED digits. The temperature in Fahrenheit and Celsius is displayed, which can be switched by pressing and holding the button for a few seconds. 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.
• 【Wide Range of Use】This aquarium heater is suitable for many occasions. The fish market is a common place for us. It can maintain the freshness of fish. They are also suitable for places where aquatic life such as fish tanks, aquariums, and small fish ponds are kept. 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.
• Manufacture: LUYS
• Product Dimensions: 12.99 x 1.38 x 1.77 inches; 1.57 Pounds

• Editor's Impressions Of The LUYS
• Heat Quality [star rating='3.9']
• Quality [star rating='5']
• Value For Money [star rating='4']
• Affordability [star rating='3.8']

7. 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 [star rating='5']
• Quality [star rating='4.4']
• Value For Money [star rating='5']
• Affordability [star rating='4.6']

8. Tetra 26445 Fauna Aquatic Reptile Heater For Frogs, Newts & Turtles,100 Watt,green

User Ratings: 67 10

Tetra 26445 First Impressions

"5 gallons."

Once attached to the tank wall I've had no issues with it coming off. For Discus you need warm and accurate heater and this seems to do the trick. It comes with a hanging kit and can be secured on the edge of the tank. And I get to keep the first one I bought! I recieved this product without the instructions or the added thermometer. Keeps the water consistent and it's easy to adjust! The setting always stayed the same.

• Tetra 26445 Fauna Aquatic Reptile Heater For Frogs, Newts & Turtles,100 Watt,green
• Protective plastic cage to prevent breakage
• Automatic thermostat maintains water temperature at 78 Fahrenheit.
• Plastic cage has openings so that the 8-foot cord can adapt to any direction
• Two oversized suction cups provide maximum hold to prevent movement by active reptiles. Appropriate for heating up to 30 gallons of water
• Note:Refer user manual below for proper installation and specification.
• Protective plastic cage to prevent breakage
• Automatic thermostat maintains water temperature at 78°F
• Plastic cage has openings so that the 8-foot cord can adapt to any direction
• Manufacture: Tetra
• Product Dimensions: 3.5 x 2.25 x 9.27 inches; 1.6 Ounces

• Editor's Impressions Of The Tetra 26445
• Heat Quality [star rating='5']
• Quality [star rating='4.4']
• Value For Money [star rating='4.7']
• Affordability [star rating='3.7']

9. SALUTE Aquarium Heater Submersible Auto Thermostat Heater, (50W/100W/200W/300W) Fish Tank Heater and...

User Ratings: 72 4

SALUTE First Impressions

"Very pleased so far."

This product came in the nick of time! I left seller feedback yesterday but have yet to hear from the seller. We received the chiller promptly and put it into use. Also were nice along the whole process. They shipped us the upgraded version that also heats! The line is there due to regulations in certain countries. Sometimes it gets outside of it's ability to cool but only within a few degrees.

• SALUTE Aquarium Heater Submersible Auto Thermostat Heater, (50W/100W/200W/300W) Fish Tank Heater and Adjustable Temperature with 2 Suction Cups Suitable for 10-115 Gallon Fish Tank
• Accurate Temperature Control: Power: 300W. Suggested water volume: 75-115gal. The aquarium heater temperature can be adjusted automatically. It is very easy to adjust the temperature you need, Adjustable heater from 68°F to 93°F (20°C - 34°C). A good temperature range for most fishes is 76°F to 80°F (25- 27°C).
• Suction Cup Fixing: Fish tank heater also equipped with 2 suction cups . The aquarium heater can be fixed at any position on the cylinder wall. The product's suction cups use thicker, non-aging materials, which greatly extend the life.
• Safe to Use: Double waterproof protection, complete underwater design can accurately maintain the temperature. Aquarium heater with two individual suction units available for safety. Polarity prevention and the power conversion is safe and reliable. Easy operation and high temperature resistance, explosion-proof quartz glass tube, high safety!
• High Quality: Excellent heat resistance, good thermostat Heater insulation, high heat transfer efficiency, strong support hooks and suction cups, the product is more stable and reliable.
• 100% Money Back Guarantee: We are so confident you'll think we have the best submersible heater on the market. If you have any problems with aquarium heater, please feel free to contact us by email. We will offer a free replacement or full refund.
• Manufacture: SALUTE

• Editor's Impressions Of The SALUTE
• Heat Quality [star rating='3.5']
• Quality [star rating='4.2']
• Value For Money [star rating='3.7']
• Affordability [star rating='3.8']

10. 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']