Editor's Choice - Our Favorite Aqueon Aquarium Heaters
1. Aqueon Submersible Heater
User Ratings: 67 11
Aqueon 100106102 First Impressions
"What a long."Easy enough to let it run all the time. Also I like how it shows both the current temperature and the set temperature. Once I opened the box i noticed the quality of the construction. The controller is easy to use, very accurate and reliable. They promptly fixed the issue without any delays or drama. I will definitely be buying another one for my other tanks at bigger one. Those turned out to be a hit and miss.
- Aqueon Submersible Heater
- Precise temperature setting to 1-degree F (68-88 degrees F)
- Recommended for aquariums up to 100-Gallons
- Shatter-resistant construction, fully submersible
- LED light turns on when aquarium water is being heated; Automatic safety shut off and overheat protection
- Lifetime Limited Warranty
- Manufacture: Central Garden & Pet
- Product Dimensions: 3.7 x 15 x 1.5 inches; 8.96 Ounces
- Editor's Impressions Of The Aqueon 100106102
- Heat Quality [star rating='3.6']
- Quality [star rating='4.9']
- Value For Money [star rating='3.3']
- Affordability [star rating='4']
Aqueon 100106102 Final Thoughts
"Will update in a month."So if you set it to 78 degrees, the heater will not kick on until it reads 76. It would stick out of my 30 g wide tank if I were to put it vertical. This is a great heater that is very easy to set up and program. I am very happy with this purchase. This is only day one though, so I shall keep an eye one it. Easy to read the temp and know exactly how warm the water is. I like to keep it at 72 and from my thermometer it is reading at exactly 72.
Overall Score
4.2
(1157 Points)

Peoples Choice - Other Highly Rated Aqueon Aquarium Heaters
2. 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
(819 Points)

3. Aqueon Pro Adjustable Heater, 100W
User Ratings: 69 11
Aqueon 100106106 First Impressions
"I have a 5."You don't have to worry about wide temperature swings with this unit. I have it set to 81F to get a 77F water temp. The heater protector was very heavy plastic and slim lined which is great. Also were nice along the whole process. The temperature has been holding all day, even in a colder room. Well I bought a second one took me only one trying to get the right temperature. I contacted the manufacturer and they sent me a new unit in less than a week!
- Aqueon Pro Adjustable Heater, 100W
- Adjustable heat setting 68 to 88°F, Electronic Thermostat accurate to +/- 1°
- Shatterproof and nearly indestructible
- Fully submersible; Auto Shut-Off when over-heats, resets when it cools down
- LED light is always on: red when heating, green when not heating
- Limited Lifetime warranty
- Manufacture: Aqueon
- Item Weight: 9.6 ounces
- Product Dimensions: 4 x 14 x 2 inches
- Editor's Impressions Of The Aqueon 100106106
- Heat Quality [star rating='4.2']
- Quality [star rating='5']
- Value For Money [star rating='3.4']
- Affordability [star rating='4.5']
Aqueon 100106106 Final Thoughts
"Well written but vague."We would consider a replacement and then we would return the defective unit. Once attached to the tank wall I've had no issues with it coming off. This this is amazing and is worth the money. Also were nice along the whole process. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. The heater is super thin and the reflective surface is interesting. So if you set it to 78 degrees, the heater will not kick on until it reads 76.
Overall Score
4.2
(793 Points)

4. Aqueon Preset Heater
User Ratings: 71 7
Aqueon 100106252 First Impressions
"They contacted me."All seem to vary between 1-2 degrees of each other which doesn't concern me much. I use this little heater for my 10 gallon quarantine tank. This heater warmed it right up and now my Betta and guppies are more active. This product came in the nick of time! You program it for temperature you want your tank to be. After several weeks of running the heater. Beware, but we are hoping for a good outcome!
- Aqueon Preset Heater
- Preset to 78 degrees, appropriate for most tropical fish.
- Fully submersible, shatter-resistant construction
- Automatic safety shut-off avoids overheating and damage
- LED indicator light displays when actively heating
- 1 year warranty
- 100 watt is recommended for 20 and 30 gallon aquariums
- Manufacture: Central Garden & Pet
- Product Dimensions: 3.5 x 1.5 x 7.75 inches; 7.52 Ounces
- Editor's Impressions Of The Aqueon 100106252
- Heat Quality [star rating='3.8']
- Quality [star rating='5']
- Value For Money [star rating='4.1']
- Affordability [star rating='3.9']
Aqueon 100106252 Final Thoughts
"Amazing customer service."The setting always stayed the same. After several weeks of running the heater. Am a totally sold customer and would recommend them to anybody! I hope these suction cups work very well. You don't have to worry about wide temperature swings with this unit. It's pretty noticeable, but I don't really care. It took me only two tries to get it to the correct temperature.
Overall Score
4.4
(764 Points)

Honorable Mentions - More Top Selling Aqueon Aquarium Heaters
5. Aqueon Adjustable PRO Aquarium Heater 100 Watts
User Ratings: 70 9
Aqueon 100532084 First Impressions
"Thank you for reading."I got this heater for my 55 gallon aquarium. Checked the accuracy of the heater with an infrared thermometer. There is a misconception on the internet that the heater isn't fully submersible. What more could you ask for great job Hygger Duncan. The temperatures are pretty accurate. I was worried about the quality but I am thoroughly impressed with this heater! When i installed them, i let them sit in the tanks without power for 6-24 hours.
- Aqueon Adjustable PRO Aquarium Heater 100 Watts
- Adjustable heat setting 68 to 88°F, Electronic Thermostat accurate to +/- 1°
- Shatterproof and nearly indestructible
- Fully submersible; Auto Shut-Off when over-heats, resets when it cools down
- LED light is always on: red when heating, green when not heating
- Limited Lifetime warranty
- Manufacture: Central Garden & Pet
- Product Dimensions: 1.5 x 1.75 x 10.38 inches; 10.4 Ounces
- Editor's Impressions Of The Aqueon 100532084
- Heat Quality [star rating='3.5']
- Quality [star rating='4.3']
- Value For Money [star rating='4.8']
- Affordability [star rating='4.9']
Aqueon 100532084 Final Thoughts
"Works great."We would consider a replacement and then we would return the defective unit. I tested it by unplugging and replugging it. I'm not a big fan of the big glass tubes. I emailed the email it says to and told them. They promptly fixed the issue without any delays or drama. Per my thermometers, they are all staying constant. This product came in the nick of time!
Overall Score
4.3
(126 Points)

Here Are Some Other Related Aquarium Heaters
6. n a Aquarium Heater,25W 50W Aquarium Fish Tank Submersible Heater,Anti-Scald Fish, with Water Shorta...
User Ratings: 60 8
N / A First Impressions
"I setup a 5."Those turned out to be a hit and miss. I went ahead and went with the the larger 300W for my 45 gallon. Seems to keep the temp n the tank fairly regular. Product was received fast, works excellent! Ick for instance detaches from fish at 86 degrees and dies at 89. The heater is easy; turn the dial to set temp and plug in. I had a thermometer on opposite side of tank and the heater was dead on true.
- n a Aquarium Heater,25W 50W Aquarium Fish Tank Submersible Heater,Anti-Scald Fish, with Water Shortage Protection and Aquarium Thermometer, for 3 to 25 Gallon Fish Tank Water Tank
- [Automatic temperature control chip]: Aquarium Heater can automatically adjust the temperature between 77 ° F and 82 ° F (25 ° C to 28 ° C). It is different from the traditional manual adjustment of other aquarium heaters, without setting. It will automatically turn on / off to reach the set temperature continuously and steadily.
- [Gift temperature sticker]: Paste the temperature sticker to the surface of the water tank, and you can use it to monitor the temperature.
- [Stable and high-grade materials]: strong industrial plastics, non-toxic and durable. It has explosion-proof, anti-expansion functions, high temperature resistance and safety. Suitable for betta fish, such as turtles and lace. Length-13.97 cm, width-2.29 cm, thickness-1.68 cm.
- [What capacity is suitable]: 25W fish tank heater is suitable for 9.83 liters to 1.83 liters, and can be used for mini fish tanks and aquariums. This aquarium heater is equipped with a suction cup, which can be easily absorbed in the aquarium. Easy to hide in the water tank.
- [Warranty and quality assurance]: We provide 24-hour guidance service, you can contact us at any time, and one year of quality problems return service. This product aquarium heater has passed CE, ROHS, FCC certification. Explosion-proof, waterproof, anti-expansion, high temperature and other safe operations.
- Manufacture: n a
- Product Dimensions: 5.3 x 1 x 0.7 inches; 6.14 Ounces
- Editor's Impressions Of The N / A
- Heat Quality [star rating='3.7']
- Quality [star rating='3.8']
- Value For Money [star rating='3.1']
- Affordability [star rating='4.5']
N / A Final Thoughts
"Overall happy."The heater is super thin and the reflective surface is interesting. The temperature lights up so it's very easy to read. I think it works well to not stand out like other heaters. The temperature difference was very minor. Awesome chiller, perfect for Hydroponics. This is a great heater that is very easy to set up and program. Easy to read the temp and know exactly how warm the water is.
Overall Score
4.1
(51 Points)

7. hygger 500W 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital...
User Ratings: 74 10
hygger First Impressions
"Excellent build quality."Come on Fluval, expect better from you. I have only had minor problems with the suction cups. The bonus digital thermometer it came with has been super helpful, and is accurate. This is a great heater that is very easy to set up and program. All seem to vary between 1-2 degrees of each other which doesn't concern me much. But my guys don't read them and don't listen! Two inches above that is a waterline for maximum.
- hygger 500W 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 60~180 Gallon for Saltwater and Freshwater
- LED DIGITAL DISPLAY CONTROLLER: ① Displays real-time water temperature or set temperature, three-digit display, water temperature display accurate to 0.1 °F, easy to read. ② 4 kinds of work instructions - Working/Malfunction/ Thermostatic/ Out of water, easy to understand. ③ Child Lock"KEY": need to touch 3 seconds to set the temperature.
- RAPID HEATING: Fastest 5 seconds warming, with intelligent circuit board, the outside is wrapped with aluminum material to accelerate heat conduction and protection. Automatically reduces power when approaching the set temperature, fully utilizes thermal energy inertia to smoothly reach the set temperature, saving energy.
- INTELLIGENT THERMOSTAT: Over-temperature protection prevents "cooking fish". When the water temp exceeds about 93.5 °F, start alternately flashing EE fault code; and over 97℉, the heater will stop heating automatically. When the water temp cool down to 93℉, the heater will start working automatically. In addition, it has a power-off memory function and no need to set it again.
- ANTI-DRY PROTECTION: When the heating rod is exposed to air, display ER fault code and the heater will shut off automatically. When the heating rod is completely immersed in water, it will start working automatically. Effectively extend the service life.
- HIGH-QUALITY MATERIALS: Built-in dual temperature probe, real-time monitoring of water temperature, temperature accuracy of ± 1 °F; high temperature resistant ABS material, no deformation and no softening, explosion-proof and anti-corrosion, no leakage of electricity. Strong suction cup bracket, can stably fix the heater in every corner of the fish tank.
- Manufacture: hygger
- Editor's Impressions Of The hygger
- Heat Quality [star rating='3.8']
- Quality [star rating='3.5']
- Value For Money [star rating='5']
- Affordability [star rating='4.2']
hygger Final Thoughts
"I bought the 7."The red light means it's off, blue light means the temperature is constant. --The cylinder or rod diameter is bigger. I think it works well to not stand out like other heaters. This heater is NOT fully submersible. This this is amazing and is worth the money. Sometimes you may have to tinker around with the dial. For Discus you need warm and accurate heater and this seems to do the trick.
Overall Score
4.3
(234 Points)

8. AquaTop Submersible Glass Heater (200 Watt (Up to 50 Gallons))
User Ratings: 80 10
AquaTop 10 First Impressions
"No copper lines!"I used to try those other cheap heaters sold on amazon. No biggie, but annoying nonetheless. It is a bonus that the heater is titanium. My heater is fully submerged underwater and works perfectly fine. The heater is easy; turn the dial to set temp and plug in. --The heater itself is a bit shorter if your tank is a short one. There is no protection from it banging on the glass tank.
- AquaTop Submersible Glass Heater (200 Watt (Up to 50 Gallons))
- Manufacture: Aquatop
- Product Dimensions: 10 x 0.01 x 10 inches; 0.16 Ounces
- Editor's Impressions Of The AquaTop 10
- Heat Quality [star rating='3.7']
- Quality [star rating='3.9']
- Value For Money [star rating='4.9']
- Affordability [star rating='4.3']
AquaTop 10 Final Thoughts
"This is a quality heater."Checked the accuracy of the heater with an infrared thermometer. Two inches above that is a waterline for maximum. I use this little heater for my 10 gallon quarantine tank. You program it for temperature you want your tank to be. This is a powerful heater that holds temperature very well. It just cycles through to 93f and starts over. I will definitely be buying another one for my other tanks at bigger one.
Overall Score
4.5
(15 Points)

9. Fluval M Submersible Heater
User Ratings: 80 3
Fluval A782 First Impressions
"The seller was wonderful."I think it works well to not stand out like other heaters. If the water runs low or air gets in the heater shuts off. I have only had minor problems with the suction cups. They promptly fixed the issue without any delays or drama. This has the best controller that I have found on the market. I will be ordering more of these in the future. This is a powerful heater that holds temperature very well.
- Fluval M Submersible Heater
- Aquarium heater that blends into the aquarium environment with built-in reflective technology that mirrors the surrounding colors
- Computer-calibrated thermostat and easy-to-adjust temperature control dial
- Shock resistant Borosilicate glass and high density ceramic heat sick
- Easy to install with slim profile tube for easy placement
- 100-watt heater suitable for freshwater and saltwater aquariums up to 30 gallons with a 3-year warranty
- Quality heater made in Europe using superior components and construction
- Sleek and compact
- Ideal for 100 L (30 US gal) aquariums
- Manufacture: Fluval
- Product Dimensions: 1.8 x 4.8 x 14.8 inches; 8.82 Ounces
- Editor's Impressions Of The Fluval A782
- Heat Quality [star rating='5']
- Quality [star rating='4.7']
- Value For Money [star rating='5']
- Affordability [star rating='3.7']
Fluval A782 Final Thoughts
"5 or even."I will be ordering more of these in the future. I will definitely be buying another one for my other tanks at bigger one. It does blend well in some setups and may look bulky in others. We would consider a replacement and then we would return the defective unit. Thanks for the great customer service! Pressing and holding the button for 5 seconds changes it from F to C readouts. My marina heater takes a few hours.
Overall Score
4.7
(1578 Points)

10. OASE HeatUp Aquarium Heater
User Ratings: 71
OASE Indoor Aquatics 33805 First Impressions
"5 gallon tank."I am very happy with this purchase. My heater is fully submerged underwater and works perfectly fine. I dont know, and havent tried just yet. I would definitely recommend this product. The red light means it's off, blue light means the temperature is constant. There is no protection from it banging on the glass tank. This product came in the nick of time!
- OASE HeatUp Aquarium Heater
- The Oase HeatUp 300 Watt Aquarium Heater features uniform temperature level thanks to the patented bi-metal technology
- 300 Watts. Recommended for tanks up to 80 gallons.
- Glass construction. Fully submersible. Suction cups and bracket for securing to the aquarium.
- Adjustable temperature control. The heating function is displayed via the activated control light. For use in fresh and saltwater aquariums.14.6" long.
- 3 year manufacturer warranty. UL listed. Made in Italy.
- Manufacture: Oase
- Editor's Impressions Of The OASE Indoor Aquatics 33805
- Heat Quality [star rating='4']
- Quality [star rating='4.9']
- Value For Money [star rating='4.4']
- Affordability [star rating='5']
OASE Indoor Aquatics 33805 Final Thoughts
"Just bought a second one!"So if you set it to 78 degrees, the heater will not kick on until it reads 76. This this is amazing and is worth the money. They shipped us the upgraded version that also heats! The temperature has been holding all day, even in a colder room. I think it works well to not stand out like other heaters. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. I was worried about the quality but I am thoroughly impressed with this heater!
Overall Score
4.5
(25 Points)
