Editor's Choice - Our Favorite Penn-Plax Aquarium Heaters

1. Penn-Plax Aquarium Heater Fully Submersible Within 1 Degree of Accuracy 75 Watt Heats Up to 15 Gallo...

User Ratings: 64 10

Penn-Plax CH850 First Impressions

"Quality was amazing."

I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. Or better yet, conceal it to the back corner. I used to try those other cheap heaters sold on amazon. I went ahead and went with the the larger 300W for my 45 gallon. 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. Sometimes it gets outside of it's ability to cool but only within a few degrees.

  • Penn-Plax Aquarium Heater Fully Submersible Within 1 Degree of Accuracy 75 Watt Heats Up to 15 Gallon Tank
  • Aquarium heater sets and maintains the temperature in your tank within 1 degree accuracy.
  • Features both Fahrenheit and Celsius temperature with easy to read gage.
  • Heater is fully submersible and can be placed horizontally or vertically in your tank.
  • Has a preset temperature to 76 degrees Fahrenheit but is also easily programmed.
  • Heater is safe to use on smaller fish tanks and aquariums up to 10 gallons in size.
  • Manufacture: Monster Pets
  • Product Dimensions: 7 x 1.5 x 3 inches; 1 Ounces
  • Editor's Impressions Of The Penn-Plax CH850
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Penn-Plax CH850 Final Thoughts

"I angled it."

My heater is fully submerged underwater and works perfectly fine. They promptly fixed the issue without any delays or drama. But I am single and don't have to worry about this. This is only day one though, so I shall keep an eye one it. Come on Fluval, expect better from you. I was amazed how quickly I got to my temperature I need it 78 degrees. There is no protection from it banging on the glass tank.

Overall Score
4.2


(848 Points)

2. hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater with Digital Thermostat, IC...

User Ratings: 77 5

hygger First Impressions

"6 gallon tank."

I went ahead and went with the the larger 300W for my 45 gallon. The suction cups are large, high quality and seem to stick great. If the water runs low or air gets in the heater shuts off. Am a totally sold customer and would recommend them to anybody! 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. I left seller feedback yesterday but have yet to hear from the seller.

  • hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater with Digital Thermostat, IC Temp Controller 50-500 Watt
  • [FULLY SUBMERSIBLE]: Our Betta Tank Heater is fully submersible in water HORIZONTALLY with 2 suction cups can be easily mounted on tank. Place it near a strong water flow so that the whole aquarium at the same temperature. Comes with a separate controller where you can easily adjust from low to high without taking out the heater from the aquarium or fish tank.
  • [SHATTERPROOF & ANTICORROSION]: Our Titanium Heater is completely shatterproof as there is NO glass in the construction– it’s made from heavy duty, durable Titanium. As it has a great feature of being anticorrosion, it is perfect for freshwater, saltwater aquariums and reef tanks.
  • [PINPOINT TEMPERATURE]: Build-in external electronic theromstat, it has DUAL LCD display that clearly shows you the temperature setting in either Celsius or Fahrenheit. Up is aquarium temperature and down is set temperature. Heater will stop heating when temperature rise exactly to your desired temp. Heating temperature range 32 to 104°F. Control accuracy is +/- 0.5° C.
  • [AUTOMATED SHUT OFF SYSTEM]: Temperature can be controlled and set to your desired degree of heat. It automatically sets off when it reached the designated temperature of your setting. Voltage: 110V
  • [TANK CAPACITY]: 200-watt aquarium heater, 10.7 inches in length. Recommended for aquariums with 20 to 45 gallons of water capacity.
  • IP68 100% Waterproof, Fully Submersible
  • Titanium Tube, Shatterproof construction, Corrosion Resistant
  • Accurate temperature control from 32°F to 104°F
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"6 gallon tank."

I had a thermometer on opposite side of tank and the heater was dead on true. The bonus digital thermometer it came with has been super helpful, and is accurate. Sometimes it gets outside of it's ability to cool but only within a few degrees. They shipped us the upgraded version that also heats! I love the heater otherwise, but I'm afraid some water has gotten inside the heater. For Discus you need warm and accurate heater and this seems to do the trick. Those turned out to be a hit and miss.

Overall Score
4.5


(514 Points)

3. Aquarium Heater 500W/800W/1000W/1200W, Double Heating Tubes, Fast Heating and Power Saving, External...

User Ratings: 55 36

TINTOR First Impressions

"Looks as advertised."

This has been in my fish tank for a few months now and it's been absolutely perfect! Maintains it well except when the weather is already warm then it over heats it. I was worried about the quality but I am thoroughly impressed with this heater! Product was received fast, works excellent! It is safe and dependable and comes with a one year warranty. Easy enough to let it run all the time. This heater is NOT fully submersible.

  • Aquarium Heater 500W/800W/1000W/1200W, Double Heating Tubes, Fast Heating and Power Saving, External Digital Temp Controller, Used for 50-160 Gallon Fresh/Salt Water Fish Tanks
  • 【PRECISE TEMPERATURE CONTROL】The built-in PID chip realizes rapid heating, smart constant temperature, stability and precision, temperature setting range is 68~93ºF and the temperature difference is within ±1ºF. The heater provides a comfortable living environment for your aquatic creatures
  • 【SAFE AND DURABLE】Explosion-proof quartz tube, special safety design for auto shut off when overheating or not fully submerged. The heater provides a super safe living environment for your fish.
  • 【REALTIME TEMPERATURE DISPLAY】The LED digital display controller displays the real-time water temperature and set temperature, so you can keep track of the fish tank temperature at any time.
  • 【HIGH-QUALITY MATERIAL】ABS plastic integral molding, no deformation, no softening, explosion-proof and anti-corrosion, no pollution, high insulation strength, suitable for both fresh water and sea water. The double-row suction cup bracket can stably fix the heater on any corner of the fish tank
  • 【Four Size Available】500W(50-80 gal), 800W(80-105 Gal), 1000W(105-130 Gal), 1200W(130-160 Gal).
  • Manufacture: TINTOR
  • Editor's Impressions Of The TINTOR
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

TINTOR Final Thoughts

"Long heater."

I love the heater otherwise, but I'm afraid some water has gotten inside the heater. This has been in my fish tank for a few months now and it's been absolutely perfect! Now, both points are clear on the package instructions. The temperatures are pretty accurate. Come on Fluval, expect better from you. The suction cups are large, high quality and seem to stick great. Very easy to install and the adjustable temperature gauge is pretty accurate.

Overall Score
3.5


(14 Points)

4. 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
  • Quality
  • Value For Money
  • Affordability

Poafamx Final Thoughts

"I like the size."

This does a great job at regulating the temp in my 10 gallon. So when I first received it it didn't work and I was very disappointed. I'm not a big fan of the big glass tubes. I like to keep it at 72 and from my thermometer it is reading at exactly 72. I dont know, and havent tried just yet. My fish likes to get close to it and he has never been hurt by it. I will definitely be buying another one for my other tanks at bigger one.

Overall Score
3.0


(7 Points)

5. hygger Submersible Aquarium Heater,100W /300W Adjustable Fish Tank Heater with External Temp Control...

User Ratings: 73 9

hygger First Impressions

"5 gallons."

I have it set to 81F to get a 77F water temp. I dont know, and havent tried just yet. Easy enough to let it run all the time. The temperature gauge is fairly accurate in my 55 gallon tank. It took about an hour to reach 80f, which is fairly quick. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. It's only been set up for a month we'll see how well it does in a few months.

  • hygger Submersible Aquarium Heater,100W /300W Adjustable Fish Tank Heater with External Temp Controller Auto Thermostat Heater for 10-60 Gallon Saltwater and Freshwater Tank
  • 300W AQUARIUM HEATER: For 30 to 60 gallon fish tanks, with a precision probe inside, it is possible to monitor heat more efficiently and avoid "cooking fish", and it can be fixed on the inner glass of the aquarium with suction cup without disturbing the fish.
  • TEMPERATURE ADJUSTMENT: Set the temperature on the adjustment wheel outside the aquarium. The adjustment knob of submersible aquarium heater can select the temperature between 75°F and 91°F , Temp Control Accuracy:±2℉,Temp Accuracy:±1℉, without worrying about hand wetness.
  • FULLY AUTOMATIC CONTROL: When the water temperature is higher than the set temperature value, the fish tank heater will automatically stop; if the water temperature is lower than the set temperature, the heater will automatically start heating (error is 1.5-2°F).
  • OVERHEAT PROTECTION: When the water temperature is over 97°F, the aquarium heater will auto shut down. If a fault occurs, the backup circuit in the controller will work to shut it down. It provides a warm and sustainable environment while keeping a safe life for fish.
  • RELIABLE QUALITY: Use milky quartz material, can resist a high temp of 1800 fahrenheit degree, excellent in explosion-proof and shatter-resistant, to prevent burns on your pet. Fish tank water Heater is suitable for saltwater and freshwater, fast heating, corrosion resistance and oxidation resistance.
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"Very pleased so far."

There is no protection from it banging on the glass tank. There is a misconception on the internet that the heater isn't fully submersible. --The cylinder or rod diameter is bigger. They shipped us the upgraded version that also heats! All seem to vary between 1-2 degrees of each other which doesn't concern me much. I like to keep it at 72 and from my thermometer it is reading at exactly 72. There is no protection from it banging on the glass tank.

Overall Score
4.3


(135 Points)

6. 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
  • Quality
  • Value For Money
  • Affordability

Sheye Final Thoughts

"Peace out."

--The cylinder or rod diameter is bigger. This heater works, but the dial it isn't very accurate. I appreciate the exterior temp readout and control module. They shipped us the upgraded version that also heats! Come on Fluval, expect better from you. It took about an hour to reach 80f, which is fairly quick. 210 gallon ones and one 90 gallon bow front tank.

Overall Score
4.4


(11 Points)

7. Inkbird Pre-Wired Digital Dual Stage Temperature Controller Outlet Thermostats 110V 1100W With 6.65f...

User Ratings: 64 10

Inkbird First Impressions

"I do recommend."

This heater warmed it right up and now my Betta and guppies are more active. But my guys don't read them and don't listen! I was amazed how quickly I got to my temperature I need it 78 degrees. Personally for me the housing doesn't bother me. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. The temperatures are pretty accurate. I'm in the process of setting up for tanks.

  • Inkbird Pre-Wired Digital Dual Stage Temperature Controller Outlet Thermostats 110V 1100W With 6.65ft DC Cord NTC Stainless Probe Sensor for Aquarium, Incubator ect
  • The sensor can easily be replaced.
  • Maximum output load: 1100W (120V).
  • Supports Centigrade or Fahrenheit unit display.
  • Alarm when over-temperature and sensor error.
  • Dual display window, be able to display measured temperature and set temperature at the same time.
  • Item Weight: 1.06 pounds
  • Editor's Impressions Of The Inkbird
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Inkbird Final Thoughts

"I like this heater."

I am very happy with this purchase. It's pretty noticeable, but I don't really care. I'm not a big fan of the big glass tubes. Thanks for the great customer service! Once I opened the box i noticed the quality of the construction. The temperature gauge is fairly accurate in my 55 gallon tank. This has the best controller that I have found on the market.

Overall Score
4.1


(25 Points)

8. Uniclife Aquarium Heater Submersible with Thermometer, 100 Watt for 20 Gallon Fish Tank

User Ratings: 67 5

Uniclife First Impressions

"Just bought a second one!"

I went ahead and went with the the larger 300W for my 45 gallon. I noticed my old hygger heater beginning to fail and my wife ordered this one. I use a 50 for a 5 gal and a 10 gal tank. I think it works well to not stand out like other heaters. Checked the accuracy of the heater with an infrared thermometer. Sometimes you may have to tinker around with the dial. I used to try those other cheap heaters sold on amazon.

  • Uniclife Aquarium Heater Submersible with Thermometer, 100 Watt for 20 Gallon Fish Tank
  • Ideal for 10-25 gallons 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 turn 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 9.7" x 1" (L x D)
  • Come with Uniclife aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1(The 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

"I like this heater."

The red light means it's off, blue light means the temperature is constant. I have only had minor problems with the suction cups. It comes with a hanging kit and can be secured on the edge of the tank. The heater is being used in a 40 gallon breeder. No biggie, but annoying nonetheless. Once attached to the tank wall I've had no issues with it coming off. The heater is super thin and the reflective surface is interesting.

Overall Score
4.3


(25 Points)

9. YCTECH Submersible Aquarium Heater with LED Water Thermometers for 1-35 Gallon Tropical Fish Tank, S...

User Ratings: 62 5

YCTECH First Impressions

"Amazing customer service."

Once attached to the tank wall I've had no issues with it coming off. But I am single and don't have to worry about this. The cover over the heating tubes is great, the turtles claws can't damage the tube. And kids love pushing all sorts of buttons. The line is there due to regulations in certain countries. We wish the controls were available in Farenheit also to make things a little easier. Those turned out to be a hit and miss.

  • YCTECH Submersible Aquarium Heater with LED Water Thermometers for 1-35 Gallon Tropical Fish Tank, Safe Adjustable Temperature Control, Electronic Water Heater Thermostat (50W / 75W / 100W / 200W)
  • 【Temperature Range】 15°C~34°C (59°F~93°F),it is suitable for fresh water and sea water fish tanks of ★ 1-10 gallons ★, provide comfortable environment for your beloved tropical fish ★ Submersible Use ONLY ★
  • 【 Smart Temperature Control 】 the micro chip will automatically keep the water in the fish tank at the temperature you set and keep it stable
  • 【Easy To Use】press the button of the thermostat to set the temperature,the temperature will changer within the cyclic temperature range ,just stop when you set it right
  • 【Power-Off Memory Function】 the aquarium heater will automatically remember the temperature you set before power off,you don’t have to set the temperature every time
  • 【Excellent service】24 hours customer service online, any questions please contact us at any time.If you are not satisfy with this Aquarium Heater for any reason in 30 days, we will refund the cost. you can return the new one for free if there is problem within a year.
  • Manufacture: CHOSION
  • Product Dimensions: 2.5 x 1.6 x 3.7 inches; 8.78 Ounces
  • Editor's Impressions Of The YCTECH
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

YCTECH Final Thoughts

"I bought the 7."

I got the 200W variant for my 54 gallon corner tank that's housing goldfish. When i installed them, i let them sit in the tanks without power for 6-24 hours. This little heater is perfect; this is our third purchase of the same heater. So far I like it setup was super easy. They promptly fixed the issue without any delays or drama. I hope these suction cups work very well. The heater is easy; turn the dial to set temp and plug in.

Overall Score
4.2


(79 Points)

10. 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
  • Quality
  • Value For Money
  • Affordability

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


(109 Points)

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