Editor's Choice - Our Favorite boxtech Aquarium Heaters

1. boxtech Aquarium Heater, 50W/100W/300W Explosion Proof Submersible Thermostat with Adjust Knob and 2...

User Ratings: 69 8

boxtech First Impressions

"Best addition to my tank."

There is no protection from it banging on the glass tank. Sometimes you may have to tinker around with the dial. I got this heater for my 55 gallon aquarium. Awesome chiller, perfect for Hydroponics. The heater is easy; turn the dial to set temp and plug in. 210 gallon ones and one 90 gallon bow front tank. I got the 200W variant for my 54 gallon corner tank that's housing goldfish.

  • boxtech Aquarium Heater, 50W/100W/300W Explosion Proof Submersible Thermostat with Adjust Knob and 2 Suction Cups Suit Marine Saltwater and Freshwater
  • Fish Tank Heater: 300W aquarium heaters suit for 30 - 80 Gallon fish tank. Voltage:110V, power cord is 5.57ft, Max deep water immersion 20 inch/1.7 FT
  • Correct installation: Stick the heater vertical onto the tank side near the water intake or on the way of water flow.(This way the heater can quickly sense the water temperature and make adjustments automatically), Keep the aquarium heater fully submerged in water
  • Fully Automatic Control: Design with External Temperature Controller, Temperature Range is 68 ºF-90 ºF, when water temperature achieve the setting temperature, heater will automatically stop heating, when water temperature is lower than the setting temperature, heater will automatically start heating
  • Quartz Tube Safety Protection: Made of heat-resistant milky quartz Glass and UL-Approved Power Cord, Controller IPX4, Heater IPX8 that make it pretty shatter-proof and Explosion-proof and prevents electricity leakage, service life can be 3 years or more
  • Notice Please: Before you clean the aquarium or change water, pls must cut off the heater power, after 10 minute cooling then take out the heater and regularly clean the scale on the heater
  • Temperature Control: Design with External Temperature Controller, Temperature Range is 68ºF-90ºF, when water temperature achieve the setting temperature, heater will automatically stop heating, when water temperature is lower than the setting temperature, heater will automatically start heating.
  • Voltage:110 V Frequency: 50HZ
  • Led Indicator Light:When it working, the indicator light is red.
  • Manufacture: BOXTECH
  • Product Dimensions: 13.39 x 1.97 x 3.54 inches; 11.99 Ounces
  • Editor's Impressions Of The boxtech
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

boxtech Final Thoughts

"There was only~0."

You don't have to worry about wide temperature swings with this unit. I was amazed how quickly I got to my temperature I need it 78 degrees. This has been in my fish tank for a few months now and it's been absolutely perfect! You don't have to worry about wide temperature swings with this unit. It is a bonus that the heater is titanium. I have it set to 81F to get a 77F water temp. My fish likes to get close to it and he has never been hurt by it.

Overall Score
4.3


(523 Points)

2. DECJ Submersible Aquarium Heater, 25W/50W/100W/150W/200W/ Fish Tahk Heater, with Adjust Knob Thermos...

DECJ First Impressions

"Very quick shipping."

If the blue light is flashing it means the heater is not fully submersible. I bought a similar one at the pet store and it barely worked. This has the best controller that I have found on the market. They shipped us the upgraded version that also heats! I tested it by unplugging and replugging it. This is only day one though, so I shall keep an eye one it. The bonus digital thermometer it came with has been super helpful, and is accurate.

  • DECJ Submersible Aquarium Heater, 25W/50W/100W/150W/200W/ Fish Tahk Heater, with Adjust Knob Thermostat 2 Suction Cups and Free Thermometer, Suitable for Marine Saltwater and Freshwater,150watt
  • IP68 WATERPROOF: This fish tank heater is waterproof, must be fully submerged in water when working, stick it with suctions horizontally or vertically onto the tank side near the water intake or where the way of water flow. Please unplug the power supply when cleaning the fish tank or aquarium water changes.
  • LED DISPLAY: Electronic Thermostat accurate to +/- 1 ℃, no need to buy another thermometer, Clearly show the temperature you set, the red indicator light is on when it start to heat your tank, and the blue indicator is on when tank reaches the temperature you regulates.
  • OVER-HEATED & SAFTY PROTECTION: When water temperature reaches to set temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. When lack of water, the heater will stop working to prevent dry burning.
  • TEMP ADJUSTABLE(℃/℉ Switchable): The temperature adjustable range is from 68℉ to 94℉ (20℃-34℃), which is suitable for different aquariums,hydroponics growing system,various ornamental fish and amphibious turtles. Essential for arowana, aquarium fish, fish ponds, and turtles.
  • UNIQUE WATER CHANGER: The water filter has a built-in porous filter to prevent fish or water grass and sand from being sucked out; the water control valve can adjust the water flow size, which is conducive to cleaning relatively small sand and gravel.
  • Manufacture: Aquarium Heaters & Chillers
  • Editor's Impressions Of The DECJ
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

DECJ Final Thoughts

"Love this heater!"

My marina heater takes a few hours. They shipped us the upgraded version that also heats! And I get to keep the first one I bought! Takes a little while to drop the temps if it is hot in the garage. The heater is super thin and the reflective surface is interesting. I am very happy with this purchase. I like the fact that it comes with a digital thermometer.

Overall Score
5.0


(1 Points)

3. TOOSELL 500W Aquarium Heater with Intelligent LED Temperature Display and External Temperature Cont...

TOOSELL First Impressions

"Well written but vague."

This is only day one though, so I shall keep an eye one it. What more could you ask for great job Hygger Duncan. I have a 10gallon tank that was at 72 degrees. It just cycles through to 93f and starts over. I got this heater for my 55 gallon aquarium. The heater is super thin and the reflective surface is interesting. I got a hold of Amazon, who put me in touch with the seller.

  • TOOSELL 500W Aquarium Heater with Intelligent LED Temperature Display and External Temperature Controller, Fish Tank Heaters Auto Thermostat for Fresh Water, Marine Water, Aquaculture
  • PREMIUM MATERIALS:The aquarium heater made of durable titanium alloy tube is suitable for fresh water, salt water and other waters, durable and long service life.
  • SAFE TO USE & EASY TO OPERATE: First, after installing the aquarium heater and thermometer correctly, just set the required heating temperature, and the blue indicator light can ensure that the temperature is constant at the set point, because if there is water temperature, it Can automatically adjust the heating power variation, and ON/OFF switch and adjustable temperature controller.
  • EXQUISITE AND SMALL, DOES NOT TAKE UP SPACE: small size, easy to hide in the water tank, and with 2 suction cups, can stabilize the heater in the position of the water tank, and is suitable for 250-350L fish tanks.
  • The dual sensing probes on the top of the heater can provide more precise sensing. Through temperature control, there are indicators on the LED display to show the heating status. Long press the "Settings" key to switch between degrees Celsius and Fahrenheit. In addition, using a constant temperature controller, the temperature can be set from 68°F to 94°F, adjusted to a temperature suitable for fish, and the anti-scalding heater cover can prevent the fish from getting too close to the heater.
  • SATISFACTION GUARANTEE: If you are not satisfied with this order, please contact us via email. We will reply to you within 24h and offer you the best customer service.
  • Manufacture: Toosell
  • Editor's Impressions Of The TOOSELL
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

TOOSELL Final Thoughts

"Great product!"

Very easy to install and the adjustable temperature gauge is pretty accurate. This is a powerful heater that holds temperature very well. We wish the controls were available in Farenheit also to make things a little easier. They shipped us the upgraded version that also heats! Personally for me the housing doesn't bother me. I wouldn't buy any other heater, unless one of these stops working. Also were nice along the whole process.

Overall Score
4.0


(1 Points)

4. 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
  • Quality
  • Value For Money
  • Affordability

Marina 11233 Final Thoughts

"I like it."

The temperatures are pretty accurate. Product was received fast, works excellent! The temperature lights up so it's very easy to read. The temperature gauge is fairly accurate in my 55 gallon tank. The bonus digital thermometer it came with has been super helpful, and is accurate. The temperature gauge is fairly accurate in my 55 gallon tank. The temperature gauge is fairly accurate in my 55 gallon tank.

Overall Score
4.3


(658 Points)

5. Orangelight Aquarium Thermostat Heater Submersible Fish Tahk Heater with Adjust Knob Thermostat 2 Su...

User Ratings: 76 3

Orangelight First Impressions

"Long heater."

It comes with a hanging kit and can be secured on the edge of the tank. There is no protection from it banging on the glass tank. This heater works, but the dial it isn't very accurate. This is a powerful heater that holds temperature very well. Bought it as a chiller for the k40 CO2 laser. I'm not a big fan of the big glass tubes. There is a misconception on the internet that the heater isn't fully submersible.

  • Orangelight Aquarium Thermostat Heater Submersible Fish Tahk Heater with Adjust Knob Thermostat 2 Suction Cups
  • 【100 Watt Heater】This Aquarium heater is suitable for 15 to 25 gallons aquariums, Length - 10.5”, voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to your Aquarium.
  • 【Premium Shatterproof Glass】Made of shatterproof glass and BPA-free plastic. Orangelight aquarium heaters are fully submersible and safe for fish without any toxic substance producing.
  • 【Automatic Constant Temperature Function】This fish heater, adjustable temperature 68 ~ 93 °F, will shut off automatically when the temperature is reached, no extra adjustment is required.
  • 【Fresh and Saltwater】Both suiting for fresh or saltwater aquariums, provide a constant warm environment for your tropical fish to stay healthy.
  • 【Wide Compatibility】Applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems
  • Made of shock resistant and shatter proof glass. Made of PTC element, an oxide ceramic, won't get fired, or broken like glass aquarium heaters, has longer service life and much safer than normal aquarium heaters.
  • 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much safer for human and your lovely fishes, your pets will no longer fear the winter.
  • Manufacture: Orangelight
  • Product Dimensions: 8.2 x 1.15 x 1.15 inches; 4.16 Ounces
  • Editor's Impressions Of The Orangelight
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Orangelight Final Thoughts

"Love this heater!"

This is only day one though, so I shall keep an eye one it. Seems to keep the temp n the tank fairly regular. I got the 200W variant for my 54 gallon corner tank that's housing goldfish. I have it set to 81F to get a 77F water temp. The heater is easy; turn the dial to set temp and plug in. It does blend well in some setups and may look bulky in others. It is a bonus that the heater is titanium.

Overall Score
4.6


(84 Points)

6. 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)

7. Periha 300W Aquarium Heater Fast Heating Submersible Fish Tank Heater with 2 Suctions Black Safe Pro...

User Ratings: 67 6

Periha First Impressions

"Temperature!"

The bonus digital thermometer it came with has been super helpful, and is accurate. This has been in my fish tank for a few months now and it's been absolutely perfect! Bought it as a chiller for the k40 CO2 laser. There is no protection from it banging on the glass tank. This product came in the nick of time! Also were nice along the whole process. I have 3 of the Fluval heaters, in various sizes.

  • Periha 300W Aquarium Heater Fast Heating Submersible Fish Tank Heater with 2 Suctions Black Safe Protective Case Adjustable Temperature Knob Suitable for 52 to 80 Gallons Aquariums
  • SAFE & RELIABLE: This Heater adopts an explosion-proof quartz tube, not afraid of occasional quench and heat. Double waterproof design, high-quality waterproof material, waterproof grade IPX8. Preventing your pet fish be electrocuted or burned due to leakage of the product. Keep your fish safe and warm.
  • ACCURATE TEMP CONTROL: Use the inner temperature controller on the top to set and adjust the desired temperature 20°C-34°C(68℉-93.2 ℉). Temperature error within ± 1 ℃. You can choose the coziest temperature for your fish.
  • FIT 80 GALLON TANKS: 300W power output, this heater is suitable for max 80 gallons aquariums and tanks, and it can be used in freshwater and saltwater. The temperature in the aquarium will rise to the ideal state soon.
  • FULLY SUBMERSIBLE: The heater must fully submersible in the water with 2 suckers. When heated for the first time, pls wait for 10-15 minutes to let the internal temperature adapt to the actual water temperature in the tank, then connect to the power supply.
  • SATISFACTORY WARRANTY: We offer 30 days full refund and 1-year limited warranty, any questions pls contact us first, we will respond within 24 hours!
  • Manufacture: qingfengdianqi
  • Product Dimensions: 1.2 x 1.2 x 15 inches; 13.62 Ounces
  • Editor's Impressions Of The Periha
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Periha Final Thoughts

"Works just as advertised!"

And I get to keep the first one I bought! I use a 50 for a 5 gal and a 10 gal tank. It's pretty noticeable, but I don't really care. And I get to keep the first one I bought! You don't have to worry about wide temperature swings with this unit. But I am single and don't have to worry about this. Well I bought a second one took me only one trying to get the right temperature.

Overall Score
4.3


(40 Points)

8. 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
  • Quality
  • Value For Money
  • Affordability

SALUTE Final Thoughts

"So far so good."

This is a great heater that is very easy to set up and program. If the water runs low or air gets in the heater shuts off. This heater warmed it right up and now my Betta and guppies are more active. I dont know, and havent tried just yet. I'm not a big fan of the big glass tubes. And I get to keep the first one I bought! I got this heater for my 55 gallon aquarium.

Overall Score
4.5


(347 Points)

9. LLY Aquarium Heater Protector Detachable Heating Rod Sleeve with Suction Cups for Aquarium Fish Tank...

LLY Pet Accessories First Impressions

"6 currently."

Per my thermometers, they are all staying constant. This this is amazing and is worth the money. This heater warmed it right up and now my Betta and guppies are more active. Am a totally sold customer and would recommend them to anybody! It's pretty noticeable, but I don't really care. I will be ordering more of these in the future. I would definitely recommend this product.

  • LLY Aquarium Heater Protector Detachable Heating Rod Sleeve with Suction Cups for Aquarium Fish Tank
  • Made of high-quality materials, effectively cuts off the heat of the heater.
  • Thanks to the suction cup design, all you need to do is place it on the heating rod, attach several protective sleeves, and then suck it into the aquarium wall.
  • Protect heaters and aquarium fish, turtles, frogs, etc., protect heaters from accidental rupture, and protect fish from burns and damage.
  • High temperatures can cause scary fish to approach or pass by. The heater package protects them and makes them more comfortable in life.
  • The protective sleeve has a proper gap design to protect the fish while maintaining the effective transfer of heat generated by the heater.
  • Manufacture: LLY
  • Item Weight: 4.23 Ounces
  • Editor's Impressions Of The LLY Pet Accessories
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

LLY Pet Accessories Final Thoughts

"Just bought a second one!"

I hope these suction cups work very well. The temperature has been holding all day, even in a colder room. For Discus you need warm and accurate heater and this seems to do the trick. The bonus digital thermometer it came with has been super helpful, and is accurate. Very easy to install and the adjustable temperature gauge is pretty accurate. The controller is easy to use, very accurate and reliable. I got this heater for my 55 gallon aquarium.

Overall Score
5.0


(1 Points)

10. UPMCT Aquarium Heater, 50W 100W 300W Submersible Fish Tank Heater with Thermometer Strip Adjust Knob...

User Ratings: 62 12

UPMCT First Impressions

"Love this heater!"

It is safe and dependable and comes with a one year warranty. I was worried about the quality but I am thoroughly impressed with this heater! I dont know, and havent tried just yet. We wish the controls were available in Farenheit also to make things a little easier. Beware, but we are hoping for a good outcome! I dont know, and havent tried just yet. Come on Fluval, expect better from you.

  • UPMCT Aquarium Heater, 50W 100W 300W Submersible Fish Tank Heater with Thermometer Strip Adjust Knob Thermostat, Suitable for 5 to 85 Gallons
  • 【Quality Assurance】High-purity thick quartz explosion-proof crystal tube is used on the surface, there will be no rust spots, causing heavy metal damage to the fish. The double sealing waterproof can also prevent electric leakage, the fish will not be electrocuted due to leakage of the product. A heating guard with a high suction cup is provided as a gift, and the fish will not be burnt due to the fish touching the aquarium heater. Keep your fish live in a carefree warmth at any time!
  • 【Wide Range Of Temperature Adjustment】Bimetallic material, precise temperature control. Adjustable temperature ranges from 68°F to 94°F(20°C - 34°C), and you can choose the coziest temperature for your fish. (The suitable temperature range for most tropical fish is 76°F to 80°F/24°C -27°C ). At the same time, a temperature sticker is attached to the fish tank, allowing you to intuitively detect temperature changes at any time, so that you can use it with more confidence.
  • 【Suitable For 5-85 Gallon Tanks】50W aquarium heater is suitable for a 5 to 15 gallon tank, 100W aquarium heater is suitable for a 15 to 25 gallon tank. 300W aquarium heater is suitable for a 50 to 85 gallon tank. It is suitable for fresh water and sea water! Please confirm the wattage, tank capacity and other details before purchasing to select the aquarium heater with appropriate wattage.
  • 【Easy To Install】Can be installed vertically or horizontally, but the aquarium heater must be completely submerged in water. We also recommend placing it near a strong water flow, where the outlet of the mains filter is ideal, so that the temperature of the entire aquarium is the same.
  • 【How To Use】Immerse the aquarium heater completely into the aquarium or tank, wait for 10-15 minutes to let the internal temperature adapt to the actual water temperature in the tank. Then twist the thermostat knob, adjust the temperature to 68°-94°F and then connect to the power supply.
  • Manufacture: UPMCT
  • Product Dimensions: 10.5 x 1.1 x 1.1 inches; 10.5 Ounces
  • Editor's Impressions Of The UPMCT
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

UPMCT Final Thoughts

"No issues."

All seem to vary between 1-2 degrees of each other which doesn't concern me much. The temperature gauge is fairly accurate in my 55 gallon tank. I would definitely recommend this product. The red light means it's off, blue light means the temperature is constant. I got a hold of Amazon, who put me in touch with the seller. Ick for instance detaches from fish at 86 degrees and dies at 89. No biggie, but annoying nonetheless.

Overall Score
4.1


(379 Points)

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