Editor's Choice - Our Favorite HITOP-Fish Aquarium Heaters

1. Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 – 50 Gallon Fish Tank

User Ratings: 75 4

HITOP-Fish First Impressions

"5 degrees."

It took me only two tries to get it to the correct temperature. I will definitely be buying another one for my other tanks at bigger one. It's pretty noticeable, but I don't really care. And I get to keep the first one I bought! They promptly fixed the issue without any delays or drama. Also I like how it shows both the current temperature and the set temperature. I have had to turn the dial to about 78-79 for the tank to stay around 76 degrees.

  • Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 – 50 Gallon Fish Tank
  • Explosion Proof: 2mm thickened explosion proof glass, 33% thicker than the normal, safer for both human and animals.
  • Application: 50W water heater is suitable for 5 – 20 gallon tank, also suitable for both saltwater and freshwater.
  • Accurate Temperature: Temperatures from 68°F to 93°F (20°C - 34°C), come with a thermometer sticker, convenient to detect the water temperature without another pay.
  • Long Service Life: Adopt 8-slot multi-branched heating wire ceramic frame, shorter length, 7.8*1*1 in(20*2.5*2.5 cm), better heat dissipation, and can save more space for your fishes.
  • Complete Accessories and Warranty: Except for thermometer, also equipped with 3 suction cups, one for replacement, and offer 12 months warranty, leave you no worries after you buy it.
  • Manufacture: IBAY
  • Product Dimensions: 7.8 x 1 x 1 inches; 8.78 Ounces
  • Editor's Impressions Of The HITOP-Fish
  • Heat Quality [star rating='4.4']
  • Quality [star rating='5']
  • Value For Money [star rating='4.5']
  • Affordability [star rating='3.8']

HITOP-Fish Final Thoughts

"The FreeSea is amazing."

Keeps the water consistent and it's easy to adjust! But my guys don't read them and don't listen! What more could you ask for great job Hygger Duncan. This heater warmed it right up and now my Betta and guppies are more active. I got this heater for my 55 gallon aquarium. This heater warmed it right up and now my Betta and guppies are more active. At this time I highly recommend this product.

Overall Score
4.5

[star rating="4.5"]
(249 Points)

Peoples Choice - Other Highly Rated HITOP-Fish Aquarium Heaters

2. Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 – 65 Gallon Fish Tank (300W for ...

User Ratings: 59 10

HITOP-Fish First Impressions

"This heater is excellent."

Will update my review if any changes occur. But my guys don't read them and don't listen! The heater is being used in a 40 gallon breeder. Once I opened the box i noticed the quality of the construction. Personally for me the housing doesn't bother me. Ick for instance detaches from fish at 86 degrees and dies at 89. Also I like how it shows both the current temperature and the set temperature.

  • Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 – 65 Gallon Fish Tank (300W for 25~65gallon)
  • Explosion Proof: 2mm thickened explosion proof glass, 33% thicker than the normal, safer for both human and animals.
  • Application:300W water heater is suitable for 20 – 50 gallon tank, also suitable for both saltwater and freshwater.
  • Accurate Temperature: Temperatures from 68°F to 93°F (20°C - 34°C), come with a thermometer sticker, convenient to detect the water temperature without another pay.
  • Long Service Life: Adopt 10-slot multi-branched heating wire ceramic frame, shorter length, 11*1*1 in(27*2.5*2.5 cm), better heat dissipation, and can save more space for your fishes.
  • Complete Accessories and Warranty: Except for thermometer, also equipped with 3 suction cups, one for replacement, and offer 12 months warranty, leave you no worries after you buy it.
  • Manufacture: IBAY
  • Product Dimensions: 11 x 1 x 1 inches; 11.22 Ounces
  • Editor's Impressions Of The HITOP-Fish
  • Heat Quality [star rating='3.1']
  • Quality [star rating='4.1']
  • Value For Money [star rating='4.3']
  • Affordability [star rating='5']

HITOP-Fish Final Thoughts

"9 degrees."

Would be great to be able to tune that to. But I am single and don't have to worry about this. --The heater itself is a bit shorter if your tank is a short one. I recieved this product without the instructions or the added thermometer. I have had to turn the dial to about 78-79 for the tank to stay around 76 degrees. Keeps the temperature within 1 degree of what you set it to at all times. I like the fact that it comes with a digital thermometer.

Overall Score
4.1

[star rating="4.1"]
(109 Points)

3. Hydor Slim Heater for Bettas, Bowls and Aquariums

User Ratings: 52 13

Hydor T20201 First Impressions

"And I am glad I did."

I think it works well to not stand out like other heaters. Now, both points are clear on the package instructions. Temperature is slightly off by running a little warmer. My heater is fully submerged underwater and works perfectly fine. It's pretty noticeable, but I don't really care. If the blue light is flashing it means the heater is not fully submersible. I contacted the manufacturer and they sent me a new unit in less than a week!

  • Hydor Slim Heater for Bettas, Bowls and Aquariums
  • Helps guarantee your fish a healthy life by promoting the ideal water temperature.
  • Plug and Play, No temperature to set
  • Can be positioned under gravel
  • No glass components
  • Heater is UL listed
  • Manufacture: Hydor USA, Inc.
  • Product Dimensions: 6.5 x 0.25 x 3.25 inches; 4 Ounces
  • Editor's Impressions Of The Hydor T20201
  • Heat Quality [star rating='3.9']
  • Quality [star rating='4.4']
  • Value For Money [star rating='3.8']
  • Affordability [star rating='3']

Hydor T20201 Final Thoughts

"Overall happy."

The temperatures are pretty accurate. The temperature gauge is fairly accurate in my 55 gallon tank. It took me a few days slowly turning the dial up to finally get it where I wanted. The heater protector was very heavy plastic and slim lined which is great. They promptly fixed the issue without any delays or drama. I adjusted the set temperature a little lower to be more in the range I wanted. Sometimes you may have to tinker around with the dial.

Overall Score
3.9

[star rating="3.9"]
(1510 Points)

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

[star rating="4.1"]
(819 Points)

5. 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 [star rating='4.7']
  • Quality [star rating='4.7']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

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

[star rating="4.5"]
(888 Points)

6. 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 [star rating='5']
  • Quality [star rating='4.2']
  • Value For Money [star rating='3.7']
  • Affordability [star rating='4.8']

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

[star rating="4.3"]
(40 Points)

7. 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 [star rating='3.7']
  • Quality [star rating='5']
  • Value For Money [star rating='4']
  • Affordability [star rating='4']

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

[star rating="4.4"]
(3152 Points)

8. Aquatop Quartz Glass Submersible Heaters (50W-300W)

User Ratings: 67 6

AquaTop GH-50W First Impressions

"Works as intended."

My fish likes to get close to it and he has never been hurt by it. You don't have to worry about wide temperature swings with this unit. I like to keep it at 72 and from my thermometer it is reading at exactly 72. This product came in the nick of time! I recieved this product without the instructions or the added thermometer. It's pretty noticeable, but I don't really care. --The heater itself is a bit shorter if your tank is a short one.

  • Aquatop Quartz Glass Submersible Heaters (50W-300W)
  • Tank capacity: up to 13-gallon
  • Voltage/freq: 110-120volt/60hertz
  • Power: 50-watt
  • Easy to use temperature setting
  • Fully submersible
  • Manufacture: Aquatop, Inc.
  • Product Dimensions: 9 x 1.5 x 1.5 inches; 10.41 Ounces
  • Editor's Impressions Of The AquaTop GH-50W
  • Heat Quality [star rating='4.3']
  • Quality [star rating='4.7']
  • Value For Money [star rating='3.4']
  • Affordability [star rating='4']

AquaTop GH-50W Final Thoughts

"Works great."

I'm in the process of setting up for tanks. Also were nice along the whole process. The line is there due to regulations in certain countries. I went ahead and went with the the larger 300W for my 45 gallon. Ick for instance detaches from fish at 86 degrees and dies at 89. This is a great heater that is very easy to set up and program. We would consider a replacement and then we would return the defective unit.

Overall Score
4.4

[star rating="4.4"]
(235 Points)

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']

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

[star rating="4.5"]
(347 Points)

10. hygger 300W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 30-60 Gallo...

User Ratings: 79 5

hygger HG-925 First Impressions

"Thank you for reading."

They shipped us the upgraded version that also heats! But I am single and don't have to worry about this. Ick for instance detaches from fish at 86 degrees and dies at 89. I confirm it with my cooking digital probe thermometer. This is a powerful heater that holds temperature very well. I am very happy with this purchase. Was very impressed with the quality of this heater.

  • hygger 300W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 30-60 Gallon
  • This fully submersible aquarium heater enables memory function and over heat protection. Auto shut off when over-heats, resets when it cools down
  • Made with premium quartz and double sealed by black protective guard, this fish tank heater is resistant to corrosion, and protect fish and other livestocks from punching and scalding
  • Build-in external IC temp controller, easy to read blue LED digital number shows real time water temperature. Heat indicator lights on red when fish heater start to heat and turns in yellow once it reach set temperature. Temp accuracy is +/- 1°F
  • Easy to set temperature without getting hands wet. Temperature can be precisely adjusted from 61 to 90°F (16°C ~ 32°C). Just press set button to desired temperature, it blinks 3 seconds and begins to work
  • 300 watt aquarium heater, voltage 110-120 V, heater rod 7.7 inches long, suitable for tank capacity 30-60 gallon freshwater and saltwater aquariums
  • IP68 100% Waterproof, Fully Submersible
  • Dual Protection - Durable Quartz Tube, resistant to corrosion; Double sealed material and protective container for scald preventing and anti punching Accurate temperature control from 61°F to 90°F (16°C ~ 32°C)
  • Easy to read blue LED digital display shows water temperature
  • Manufacture: hygger
  • Editor's Impressions Of The hygger HG-925
  • Heat Quality [star rating='5']
  • Quality [star rating='3.8']
  • Value For Money [star rating='3.7']
  • Affordability [star rating='3.6']

hygger HG-925 Final Thoughts

"Impressive."

I would definitely recommend this product. And I get to keep the first one I bought! It would stick out of my 30 g wide tank if I were to put it vertical. What more could you ask for great job Hygger Duncan. I waited a little bit to write the review so it could be accurate. Will update my review if any changes occur. I recieved this product without the instructions or the added thermometer.

Overall Score
4.6

[star rating="4.6"]
(77 Points)

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