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Your cart is empty. The Best 25W Mini Aquarium Heater For 3~5 Gallons Small Fish Tank
Product Features
Power: 25W
Mini Heater length only 5.3inch.
Intelligent constant temp: 75℉ - 82℉ / 24℃ - 28 ℃ (±1℃)
Fit 3 to 5 gallons small tank( fresh water and salt water)
A Free Digital Electronic Thermometer
NOTICE:
1.When in use, please make sure the heater is completely submerged in the water.
Why Do I Select DaToo 25W MINI Aquarium Heater?
1.Intelligent Temperature Constant System: Built-in DNT7 chip, can automatically constant the temperature at 75℉ - 82℉, never overheating.
2.Real-time Monitoring Of Water Temperature: A Free Digital Electronic Thermometer, waterproof and wireless, let you know the water temperature of the fish tank at any time.
3. Sturdy And Durable: Excellent engineering-grade plastic shell and MCH heating ceramic, with explosion-proof, anti-cracking and hot-proof functions, greatly improving the high temperature resistance and life of the heater.
4. Mini Size: Only 5.3 inches in length, perfect for a variety of small fish tank.
5. Safety Certifications: DaToo 25W mini aquairum heater have been certified by FCC, CE and ROHS, which means the DaToo heater has great safety performance.
6. One Year Warranty, let you select DaToo more assured.
Select DaToo Products= Own A Private Aquarium Housekeeper.
JUST DO IT, Let’t Go!!
dexter
July 22, 2025
Keeps our betta 5 gallon tank at around 82 Fahrenheit. It’s compact in size and suction cup holds it in place. Happy with product
Emma
June 24, 2025
Worked great for the first month and a half or so then it stopped working unexplainably.
Samje
June 14, 2025
I love the size of it and it's not hard to clean ..havent used it yet..but it works and very fast shipping when you pay the 5.99 extra fast shipping ..thankyou
Louise Z
June 7, 2025
Small size so does not take precious space in a small tank. Like the digital thermometer as well. Comes with a button battery. Great purchase.
Customer
May 14, 2025
This worked for a very short time and now it barely heats the water and condensation is inside the thermometer so you can't even see the temp clearly. Buyer beware
SMarshall
May 5, 2025
Keeps an (almost) consistent temp of 82°, wish you could adjust the temp you want it to maintain because it obviously works well. Advertised as a betta heater but just too warm for a betta tank.
Larry Wagner
April 18, 2025
The digital temperature read out stopped working after 2 days. Moisture got inside and is no longer readable.
Smokin Jay
April 11, 2025
it's keeping the temp at a steady 79/80 whereas the other one was a constant 82. Makes no sense to me but this one is performing fine..so far
Kestlie Randall
March 9, 2025
Absolutely love and so does my Beta. It does keep the temoerature between 77° to 86° as advertised. My Beta is always next to it and loves the heat. Whenever it is heating the tank up the little red light turns on. No issues at all even for my 3 gallon tank.
laGar
February 15, 2025
Buen producto.
donna manning
January 7, 2025
Loved the shape and size, but in two weeks it stopped working. Good thing I waited to add a fish. The temp dropped really low before I notice because the thermostat was wrong. Noticed it when I did a partial water change and the water was really cold. Too bad because it’s a nice slim design. I also notice no contact number.
Cliente de
December 27, 2024
Deben ser los calentadores más estéticos del mercado, desafortunadamente no cumple con su función.Tengo un tortugario de 6 litros y solo eleva la temperatura un par de grados. Menos de lo que promete.
Carissa
November 8, 2024
This gets the job done i give 4 out of 5 stars. While you can't control the exact temperature, this does in fact keep your tank at the temperatures specified. It will very throughout the day but will always be within the specified range. It does suction cup to the wall decently and I personally have not had an issue with the suction power of the heater itself. The digital thermometer didn't want to suction at first and would float away but after a few tries I got it to sit in place. (Away from any current in the tank) all in all a decent buy.
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