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
  • Quality
  • Value For Money
  • Affordability

Tetra 26445 Final Thoughts

"It easy to set."

Seems to keep the temp n the tank fairly regular. Maintains it well except when the weather is already warm then it over heats it. Also I like how it shows both the current temperature and the set temperature. I contacted the manufacturer and they sent me a new unit in less than a week! The temperatures are pretty accurate. Am a totally sold customer and would recommend them to anybody! I think it works well to not stand out like other heaters.

Overall Score
4.2


(2210 Points)

2. FREESEA 25/50/100/200/300 Watt Aquarium Heater with Aquarium Submersible Thermometer

User Ratings: 66 8

FREESEA First Impressions

"7L Imagitarium tank."

I use a 50 for a 5 gal and a 10 gal tank. I used to try those other cheap heaters sold on amazon. I will be ordering more of these in the future. Temperature is slightly off by running a little warmer. I adjusted the set temperature a little lower to be more in the range I wanted. Easy enough to let it run all the time. It comes with a hanging kit and can be secured on the edge of the tank.

  • FREESEA 25/50/100/200/300 Watt Aquarium Heater with Aquarium Submersible Thermometer
  • ★【50 Watt Heater】: This Aquarium heater is suitable for 5 to 15 gallons aquariums, Length - 6.8 inch,voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart.
  • ★【Temperature range】: 63°F~95°F , It is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time.
  • ★【Intelligent temperature control】: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. Furthermore, Automatic safety shut-off feature, and overheating protection.
  • ★【Note】: 1. Aquarium heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.,Please unplug the power supply when cleaning the fish tank or aquarium water changes. 2. Heater rod is suitable for people over 16 years of age. Children or minors should be under adult guidance or supervision.
  • ★【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: FREESEA
  • Product Dimensions: 11.3 x 3 x 2 inches; 8.61 Ounces
  • Editor's Impressions Of The FREESEA
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

FREESEA Final Thoughts

"Highly recommended."

So when I first received it it didn't work and I was very disappointed. The temperature gauge is fairly accurate in my 55 gallon tank. I will definitely be buying another one for my other tanks at bigger one. I have it set to 81F to get a 77F water temp. I have had to turn the dial to about 78-79 for the tank to stay around 76 degrees. The heater is being used in a 40 gallon breeder. The bonus digital thermometer it came with has been super helpful, and is accurate.

Overall Score
4.3


(2536 Points)

3. 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
  • Quality
  • Value For Money
  • Affordability

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)

4. NICREW Submersible Mini Aquarium Heater, Aquatic Turtle Heater with Intelligent LED Temperature Disp...

User Ratings: 62 12

NICREW N12611 First Impressions

"They contacted me."

You program it for temperature you want your tank to be. We received the chiller promptly and put it into use. I hope these suction cups work very well. I used to try those other cheap heaters sold on amazon. Seems to keep the temp n the tank fairly regular. The red light means it's off, blue light means the temperature is constant. The cover over the heating tubes is great, the turtles claws can't damage the tube.

  • NICREW Submersible Mini Aquarium Heater, Aquatic Turtle Heater with Intelligent LED Temperature Display
  • Precise temperature adjustment from 68℉ to 94℉
  • Convenient and secure design will automatically shut off if heater is no longer properly submerged, preventing damage
  • LED temperature display allows easy visual confirmation of heater operation
  • External controller allows easy and safe temperature adjustment outside
  • Fully submersible heaters for aquariums up to 5G
  • Manufacture: NICREW
  • Editor's Impressions Of The NICREW N12611
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

NICREW N12611 Final Thoughts

"1 difference."

This product came in the nick of time! Those turned out to be a hit and miss. I have a 10gallon tank that was at 72 degrees. Come on Fluval, expect better from you. Well worth the money the first one I bought still works great. It is safe and dependable and comes with a one year warranty. For Discus you need warm and accurate heater and this seems to do the trick.

Overall Score
4.0


(404 Points)

5. Finnex Hang-On Electronic Controller Aquarium Heater, Titanium Tube

User Ratings: 61 12

Finnex HMA-500 First Impressions

"Yes, you read that right."

I was worried about the quality but I am thoroughly impressed with this heater! I will definitely be buying another one for my other tanks at bigger one. We received the chiller promptly and put it into use. I emailed the email it says to and told them. This heater warmed it right up and now my Betta and guppies are more active. I waited a little bit to write the review so it could be accurate. The temperature lights up so it's very easy to read.

  • Finnex Hang-On Electronic Controller Aquarium Heater, Titanium Tube
  • Titanium Tube
  • Sleek analog controller
  • HMA 500: 100-120 Gallons
  • Manufacture: JSK Merchandise Inc.
  • Product Dimensions: 14.48 x 1 x 1 inches; 14.4 Ounces
  • Editor's Impressions Of The Finnex HMA-500
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Finnex HMA-500 Final Thoughts

"I would buy again."

This has the best controller that I have found on the market. 210 gallon ones and one 90 gallon bow front tank. The heater is easy; turn the dial to set temp and plug in. The heater is being used in a 40 gallon breeder. This heater works, but the dial it isn't very accurate. It's only been set up for a month we'll see how well it does in a few months. This product came in the nick of time!

Overall Score
4.1


(287 Points)

6. Uniclife Aquarium Heater Submersible with Thermometer, 50 Watt for 10 Gallon Fish Tank

User Ratings: 83

Uniclife First Impressions

"Long heater."

At this time I highly recommend this product. At this time I highly recommend this product. Per my thermometers, they are all staying constant. I waited a little bit to write the review so it could be accurate. It does blend well in some setups and may look bulky in others. If the blue light is flashing it means the heater is not fully submersible. Awesome chiller, perfect for Hydroponics.

  • Uniclife Aquarium Heater Submersible with Thermometer, 50 Watt for 10 Gallon Fish Tank
  • Uniclife submersible heater, ideal for 5-15gal 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.
  • Please notice the red indicator light is on while working, will automatically turned off when temperature reached. Carefully check external condition before use. Recommend testing before introduce to fish.
  • 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 8.6" x 1" (L x D)
  • Come with Uniclife aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1(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.
  • Manufacture: Uniclife
  • Editor's Impressions Of The Uniclife
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Uniclife Final Thoughts

"And I am glad I did."

They shipped us the upgraded version that also heats! It took me a few days slowly turning the dial up to finally get it where I wanted. All seem to vary between 1-2 degrees of each other which doesn't concern me much. It is safe and dependable and comes with a one year warranty. The design is sleek and modern looking. I will be ordering more of these in the future. I dont know, and havent tried just yet.

Overall Score
4.8


(20 Points)

7. Yescom 400W Submersible Adjustable Thermostat Aquarium Heater Titanium Fish Tank Heater 80 Gallon Sa...

User Ratings: 34

Yescom First Impressions

"Same suckers for years!"

--The heater itself is a bit shorter if your tank is a short one. Easy enough to let it run all the time. I emailed the email it says to and told them. 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. They shipped us the upgraded version that also heats! The suction cups are large, high quality and seem to stick great.

  • Yescom 400W Submersible Adjustable Thermostat Aquarium Heater Titanium Fish Tank Heater 80 Gallon Salt Fresh Water
  • Aquarium Heater: 400w fish tank heater fits 3 1/4 to 3 11/12 ft fish tank and is ideal for fresh water & salty water aquariums, is suitable for 70-80 gallon
  • LCD Digital Display: Easy to observe the water temperature and the external controller is safe to adjust temperature
  • More durable: Made of Titanium Alloy, IPX8 water-proof, explosion-proof, corrosion-proof, scald-preventing
  • Power-off Protection: When sensing probe is exposed in the air or the water temperature is above 94°F, the heater will stop heating to effectively prevent dry burning
  • Buy with confidence: CE, FCC, ROHS certificated for safe protection
  • Manufacture: Yescom
  • Product Dimensions: 12.6 x 1.2 x 1.2 inches; 13.93 Ounces
  • Editor's Impressions Of The Yescom
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Yescom Final Thoughts

"5 or even."

If the blue light is flashing it means the heater is not fully submersible. Well worth the money the first one I bought still works great. I use a 50 for a 5 gal and a 10 gal tank. I dont know, and havent tried just yet. I appreciate the exterior temp readout and control module. I tested it by unplugging and replugging it. I contacted the manufacturer and they sent me a new unit in less than a week!

Overall Score
4.0


(3 Points)

8. Eheim Jager Aquarium Thermostat Heater

User Ratings: 72 7

Eheim 3619090 First Impressions

"I angled it."

For Discus you need warm and accurate heater and this seems to do the trick. I wouldn't buy any other heater, unless one of these stops working. Maintains it well except when the weather is already warm then it over heats it. I like how the heater is constructed. This is only day one though, so I shall keep an eye one it. The design is sleek and modern looking. Pressing and holding the button for 5 seconds changes it from F to C readouts.

  • Eheim Jager Aquarium Thermostat Heater
  • Fully submersible
  • Thermo safey control protects against running dry
  • Will automatically turn off when water level dips too low
  • TruTemp dial recalibrates the heater for precise temperature regulation
  • Made of shock resistant and shatter proof glass for fresh or marine water
  • On/Off indicator light for at-a-glance monitoring
  • Manufacture: Eheim
  • Editor's Impressions Of The Eheim 3619090
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Eheim 3619090 Final Thoughts

"Long heater."

This is only day one though, so I shall keep an eye one it. We would consider a replacement and then we would return the defective unit. I will definitely be buying another one for my other tanks at bigger one. They shipped us the upgraded version that also heats! And kids love pushing all sorts of buttons. We received the chiller promptly and put it into use. I got a hold of Amazon, who put me in touch with the seller.

Overall Score
4.4


(3152 Points)

9. ViaAqua 200-Watt Quartz Glass Submersible Heater with Built-In Thermostat

User Ratings: 74 5

ViaAqua VA 200Q First Impressions

"Temperature!"

Personally for me the housing doesn't bother me. It took me only two tries to get it to the correct temperature. Easy enough to let it run all the time. I left seller feedback yesterday but have yet to hear from the seller. Come on Fluval, expect better from you. This heater is NOT fully submersible. I had a thermometer on opposite side of tank and the heater was dead on true.

  • ViaAqua 200-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 12.5 inches; 9.44 Ounces
  • Editor's Impressions Of The ViaAqua VA 200Q
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

ViaAqua VA 200Q Final Thoughts

"I do recommend."

I got a hold of Amazon, who put me in touch with the seller. The controller is easy to use, very accurate and reliable. I got this heater for my 55 gallon aquarium. And kids love pushing all sorts of buttons. And I get to keep the first one I bought! I bought a similar one at the pet store and it barely worked. The design is sleek and modern looking.

Overall Score
4.5


(888 Points)

10. hygger Mini Betta Fish Heater for Small Fish Bowl 15W 25W 35W 50W Slim Aquarium Heater with LED Digi...

User Ratings: 55 19

hygger First Impressions

"So far its ok."

The temperature difference was very minor. Sometimes you may have to tinker around with the dial. Or better yet, conceal it to the back corner. I dont know, and havent tried just yet. I emailed the email it says to and told them. There is no protection from it banging on the glass tank. Sometimes you may have to tinker around with the dial.

  • hygger Mini Betta Fish Heater for Small Fish Bowl 15W 25W 35W 50W Slim Aquarium Heater with LED Digital Display up to 9 Gallon Tank 68°F to 94°F
  • Fully-submersible heater by Hygger is easy to install with included suction cups and slim profile, super tiny size just measures 3.5 in x 2 in x 0.8 in, can easily be wedged in a corner, great for small or partially filled tank
  • Bright, clear LCD display that shows real-time water temperature over guesswork is a big bonous, display in either Celsius or Fahrenheit, depending on your choice. Red indicator light indicates the heater is working and turns into blue once it reach to desired temperature
  • Build-in thermostat on the cord, this small fish heater can be easily adjusted temperature without getting your hands wet. The precision temperature control allows you to set the temperature between 68 and 94 degrees F in 2-degree increments
  • Betta Heater auto shut off when over-heats temperature over 97 degree Fahrenheit and flashing error code "E2". The nylon integrated fish guard prevents fish from scald and punching. Carbon heating element is more stable and safer than tranditional coil material
  • 15 watt aquarium heater is ideal for small wall fish bowls up to 2 gallon, betta tank, snail tank and turtle tank
  • Fully submersible heater
  • White LED digital number displays shows real time water temperature, free of thermometer.
  • Red light -- heating up water, blue light -- stop heating and maintain current temp
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"Great heater."

It took me only two tries to get it to the correct temperature. It does blend well in some setups and may look bulky in others. The red light means it's off, blue light means the temperature is constant. We would consider a replacement and then we would return the defective unit. This is only day one though, so I shall keep an eye one it. Well worth the money the first one I bought still works great. So far I like it setup was super easy.

Overall Score
3.8


(118 Points)

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