Editor's Choice - Our Favorite Tetra Aquarium Heaters

1. 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']

Here Are Some Other Related Aquarium Heaters

2. Eheim Thermocontrol e250 Heater, Black (AEH3638090)

Eheim AEH3638090 First Impressions

"It is a bit pricey."

I contacted the manufacturer and they sent me a new unit in less than a week! Ick for instance detaches from fish at 86 degrees and dies at 89. At this time I highly recommend this product. Those turned out to be a hit and miss. This heater is NOT fully submersible. Ick for instance detaches from fish at 86 degrees and dies at 89. The design is sleek and modern looking.

• Eheim Thermocontrol e250 Heater, Black (AEH3638090)
• Advantages of the EHEIM control heater thermocontrol-e Precise temperature adjustment from 68°F to 89°F (20 to 32°C) No readjustment necessary Control accuracy 0. 5 °C The heat is kept constant Control lamp indicates the heating function (red: heating up; green: temperature reached) Fully submersible (waterproof) With dry-running protection (Thermo Safety Control) Glass coating increases the heating surface and ensures optimum, even heat output Including double suction holder Many sizes for aquariums from 5 to 300 gallons Suitable for fresh and marine water Highest safety and reliability Made in Germany Specifications Wattage: 250W Temperature setting range: 68°F to 89°F (20 to 32°C) Aquarium Size (approx. ) 106-159 Gallons Height: 17. 4" Power Cord Length: 5. 5'
• Item Package Height: 3.0
• Item Package Length: 25.0
• Item Package Width: 3.0
• Manufacture: Eheim

• Editor's Impressions Of The Eheim AEH3638090
• Heat Quality [star rating='5']
• Quality [star rating='4']
• Value For Money [star rating='5']
• Affordability [star rating='4.5']

3. Eheim Thermocontrol e50 Heater

User Ratings: 77 23

Eheim AEH3632090 First Impressions

"Works just as advertised!"

This is a great heater that is very easy to set up and program. It is a bonus that the heater is titanium. Beware, but we are hoping for a good outcome! When i installed them, i let them sit in the tanks without power for 6-24 hours. It's only been set up for a month we'll see how well it does in a few months. I appreciate the exterior temp readout and control module. I got this heater for my 55 gallon aquarium.

• Eheim Thermocontrol e50 Heater
• Advantages of the EHEIM control heater thermocontrol-e Precise temperature adjustment from 68°F to 89°F (20 to 32°C) No readjustment necessary Control accuracy 0. 5 °C The heat is kept constant Control lamp indicates the heating function (red: heating up; green: temperature reached) Fully submersible (waterproof) With dry-running protection (Thermo Safety Control) Glass coating increases the heating surface and ensures optimum, even heat output Including double suction holder Many sizes for aquariums from 5 to 300 gallons Suitable for fresh and marine water Highest safety and reliability Made in Germany Specifications Wattage: 50W Temperature setting range: 68°F to 89°F (20 to 32°C) Aquarium Size (approx. ) 6. 5-15 Gallons Height: 9. 2" Power Cord Length: 5. 5'
• Item Package Height: 3.0
• Item Package Length: 20.0
• Item Package Width: 3.0
• Manufacture: Eheim

• Editor's Impressions Of The Eheim AEH3632090
• Heat Quality [star rating='3.8']
• Quality [star rating='3.3']
• Value For Money [star rating='4.1']
• Affordability [star rating='4.3']

4. 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 [star rating='4.3']
• Quality [star rating='3.6']
• Value For Money [star rating='4.7']
• Affordability [star rating='3.8']

5. Uniclife 200 Watt Aquarium Heater with Thermometer, Fish Tanks Heater of 50 Gallon

User Ratings: 74

Uniclife First Impressions

"Peace out."

Pressing and holding the button for 5 seconds changes it from F to C readouts. Keeps the temperature within 1 degree of what you set it to at all times. It's only been set up for a month we'll see how well it does in a few months. The setting always stayed the same. I was amazed how quickly I got to my temperature I need it 78 degrees. I use a 50 for a 5 gal and a 10 gal tank. The temperatures are pretty accurate.

• Uniclife 200 Watt Aquarium Heater with Thermometer, Fish Tanks Heater of 50 Gallon
• Can be used in both freshwater and saltwater, applicable for 25-50 gallon fish tanks.
• Adjust temperature by top red knob, range 68°F-93°F. Tube temperature displayed.
• Water-tight of IP68 sealing. 2mm shatterproof quartz housing, bottom clash-proof cover. (NOTICE: Can’t be used even just cracked a tiny bit, pls contact us for replacement)
• Measurement 11.2" x 1" (L x D). Only allowing for vertical or horizontal installment.
• Package include aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1.
• 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.
• Manufacture: Uniclife

• Editor's Impressions Of The Uniclife
• Heat Quality [star rating='5']
• Quality [star rating='4.3']
• Value For Money [star rating='4.8']
• Affordability [star rating='4.4']

6. 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']

7. BOEESPAT 300W Aquarium Heater, Submersible Fish Tank Heater for 30-60 Gallon Tank, with Adjustable L...

User Ratings: 65 7

BOEESPAT First Impressions

"Buy with confidence!"

Also were nice along the whole process. Ick for instance detaches from fish at 86 degrees and dies at 89. So far I like it setup was super easy. Sometimes you may have to tinker around with the dial. My heater is fully submerged underwater and works perfectly fine. Seems to keep the temp n the tank fairly regular. Thanks for the great customer service!

• BOEESPAT 300W Aquarium Heater, Submersible Fish Tank Heater for 30-60 Gallon Tank, with Adjustable LED Digital Temperature Controller, Memory & Overheat Protection Function
• 【HIGN SAFETY】Fully submersible 300W aquarium heater equips memory and overheat protection function, it will stop heating automatically when the temp exceeds 96.8°F（36°C）, the LED display has an indicator light for current and setting temp
• 【EXTERNAL CONTROLLER】Fish tank heater build-in external IC temp controller, LED digital number shows current water temperature, there is a working indicator light, red light shows heating and it turns blue when reaches set temp
• 【FULLY SUBMERSIBLE】Submersible aquarium heater waterproofing IPX8 max 1M deep water immersion, premium quartz and double sealed by a black protective guard make it pretty shatter-proof and explosion-proof and prevents electricity leakage
• 【EASY INSTALLATION】Make sure thermometer is completely submerged underwater for minutes, temp controller is adjustable from 68 to 94°F (20°C ~ 34°C), just press set button to the set temperature, it begins to work after 3 seconds blinking
• 【LARGE CAPACITY】300-watt aquarium heater applies voltage 110-120V, suitable for many tank capacity 30-60 gallon freshwater and saltwater aquariums, this thermostat will help to create a comfortable house for your pet turtles or fishes
• ±1℃ temp accuracy
• IPX8 waterproof grade
• explosion-proof
• Manufacture: BOEESPAT

• Editor's Impressions Of The BOEESPAT
• Heat Quality [star rating='4.9']
• Quality [star rating='3.8']
• Value For Money [star rating='5']
• Affordability [star rating='4']

8. Fluval Marina Submersible Heater for Aquarium

User Ratings: 68 7

Marina 11233 First Impressions

"The accuracy is perfect."

This product came in the nick of time! I got this heater for my 55 gallon aquarium. They promptly fixed the issue without any delays or drama. When i installed them, i let them sit in the tanks without power for 6-24 hours. I adjusted the set temperature a little lower to be more in the range I wanted. Those turned out to be a hit and miss. I think it works well to not stand out like other heaters.

• Fluval Marina Submersible Heater for Aquarium
• Submersible heater for fresh or saltwater aquariums or reservoirs
• Easy to read temperature settings
• Impact-resistant glass design; Water proof sealing
• Includes bracket with suction cups for easy, secure installation
• Length: 8.5 Inch
• Manufacture: Marina
• Product Dimensions: 1.5 x 1.5 x 8.5 inches; 9.6 Ounces

• Editor's Impressions Of The Marina 11233
• Heat Quality [star rating='4.8']
• Quality [star rating='4.7']
• Value For Money [star rating='4.5']
• Affordability [star rating='5']

9. Poafamx 5gal Aquarium Chiller 20L Fish Tank Water Cooling System Temperature Constant Quiet for Home...

User Ratings: 15 16

Poafamx First Impressions

"And I am glad I did."

And kids love pushing all sorts of buttons. The heater is super thin and the reflective surface is interesting. This has the best controller that I have found on the market. But my guys don't read them and don't listen! At this time I highly recommend this product. But I am single and don't have to worry about this. I will definitely be buying another one for my other tanks at bigger one.

• Poafamx 5gal Aquarium Chiller 20L Fish Tank Water Cooling System Temperature Constant Quiet for Home Use Jellyfish Coral Aquaculture 110V with pump (20L Chiller)
• [ADJUSTABLE CONSTANT WATER COOLER HEATER] The aquarium cooler has real-time monitoring of water temperature, automatic constant temperature
• [LOW NOISE] Imported electronic components design, cooling/ heating without noise
• [ENVIRONMENTAL PROTECTION] Using electronic refrigeration technology, environmental protection and no emissions
• [SMALL AND CONVENIENT] Small size, light weight, easy to store and carry, easy to install and clean
• [WIDE RANGE OF APPLICATION] Widely used in homes, aquariums, fish tanks, fish farms, and other fields. Also suitable for aquatic creature, aquaculture, fish, crystal shrimp, coral and jellyfish
• Heat dissipation
• Quiet fan
• Quiet fan design
• Manufacture: Poafamx
• Item Weight: 4.33 pounds

• Editor's Impressions Of The Poafamx
• Heat Quality [star rating='2.7']
• Quality [star rating='2.4']
• Value For Money [star rating='2.7']
• Affordability [star rating='2.5']

10. Aqua Euro USA Apex Chiller Horsepower: 1/10 HP

Aqua Euro USA AC10A First Impressions

"Can be hidden."

Sometimes you may have to tinker around with the dial. There is a misconception on the internet that the heater isn't fully submersible. I got the 200W variant for my 54 gallon corner tank that's housing goldfish. Or better yet, conceal it to the back corner. This this is amazing and is worth the money. I contacted the manufacturer and they sent me a new unit in less than a week! Or better yet, conceal it to the back corner.

• Aqua Euro USA Apex Chiller Horsepower: 1/10 HP
• Titanium heat exchanger features a high BTU rating for superior heat removal
• Aquarium water chiller designed with quiet operation-rubber mounts to reduce vibration
• Powerful compressor uses Freon-free and ozone-friendly R134a refrigerant
• 1/10th Horsepower Rating
• Manufacture: Aqua Euro USA
• Item Weight: 29 pounds
• Product Dimensions: 15.7 x 8.6 x 16.4 inches

• Editor's Impressions Of The Aqua Euro USA AC10A
• Heat Quality [star rating='2.7']
• Quality [star rating='4']
• Value For Money [star rating='3.5']
• Affordability [star rating='3.9']