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DaToo

DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker

    • Based on 3,297 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Dec 25
Order within 20 hours and 13 minutes
Available payment plans shown during checkout

Size: 25W


Features

  • 25W Betta Aquarium Heater: Creating and maintaining a perfect and comfortable water temperature for our cute fish is not easy, which requires a lot of effort. Now DaToo MINI 25W Aquarium Heater can help you make this easier. Precise and constant temperature, no need to set, keep the temperature of fish habitat in the best state at all times. You will find it very easy and happy to take care of pet fish!
  • Precise And Constant Temperature: No need to set, DaToo Fish Tank Heater will automatically keep the water temperature of the fish habitat at 78F. This temperature is very suitable for betta and most tropical fish. When the water temperature is lower than 78F, the heater starts to heat and the red light is on. When the temperature reaches 78F, the heater stops heating and the green light is on. DaToo will always maintain this comfortable temperature for your beloved fish!
  • The Smallest 25W Betta Heater: For most fish lovers who have small fish tanks of 1 to 5 gallons, a small heater means more space for fish. This is the smallest 25W aquarium heater on the market, only 0.2 inches. No matter how small your fish tank is, it can be used perfectly in it, and you can't even find it. Very MINI!!
  • Safe And Durable: Unlike traditional plastic seals, DaToo uses a rubber sealing layer, which ensures that DaToo has better sealing and safety performance, and will never leak electricity or water. Quartz glass material, explosion-proof and crack-proof, more sturdy and durable, without worrying about damage.
  • One Year Warranty & Satisfaction Guarantee: This heater is ideal for 1 to 6 gallon small glass or acrylic desktop aquariums. When in use, it needs to be submerged 100% in water. We provide one year warranty and 24 hours professional customer service. Buy With Confidence!

Description

The Smallest 25Watt Aquarium Heater For Your needs Specification: Power: 25Watt Voltage: 110V~120V/50~60Hz Heater Size: 4.90.90.9inch Power cord: 3.9ft Application: 1 to 5 gallon aquarium Features: - The Smallest 50W Heater On The Market - 78℉ Constant Temperature - Rubber Sealing Layer - Quartz Glass Material - One Year Warranty And 24 Hours Professional Customer Service Why Choose DaToo MINI 25W Aquarium Heater? 1. No Need To Set: DaToo MINI 25W Aquarium Heater will automatically keep the water temperature constant at 78℉. Simple and convenient, very suitable for beginners. 2. The smallest 25W aquarium heater: Only 0.2 inches in length, the smallest 25W heater on the market. No matter how small your fish tank is, it can easily meet your needs. 3. Safe: Unlike traditional plastic seals, DaToo uses a rubber sealing layer for better sealing and safety performance, and will never leak electricity or water. 4. Durable: Quartz glass material, explosion-proof and crack-proof, more sturdy and durable, without worrying about damage. 5. One Year Warranty And 24 Hours Professional Customer Service, Buy With Confidence! Select DaToo Products= Own A Private Aquarium Housekeeper. JUST DO IT, Let’t Go!!

Brand: DaToo


Color: Black


Age Range (Description): Adult


Outer Material: Plastic


Product Care Instructions: Wipe Clean


Unit Count: 1.0 count


Power Source: Corded Electric


Item Length: 4.9 Inches


Upper Temperature Rating: 78 Degrees Fahrenheit


Reusability: Reusable


Package Dimensions ‏ : ‎ 5.43 x 2.8 x 2.28 inches; 5.11 ounces


Item model number ‏ : ‎ DT-25A


Date First Available ‏ : ‎ July 17, 2020


Manufacturer ‏ : ‎ DaToo


Best Sellers Rank: #5,214 in Pet Supplies (See Top 100 in Pet Supplies) #7 in Aquarium Heaters


#7 in Aquarium Heaters:


Customer Reviews: 4.3 4.3 out of 5 stars 3,297 ratings


Brand: DaToo


Color: Black


Age Range (Description): Adult


Outer Material: Plastic


Product Care Instructions: Wipe Clean


Unit Count: 1.0 count


Power Source: Corded Electric


Item Length: 4.9 Inches


Upper Temperature Rating: 78 Degrees Fahrenheit


Reusability: Reusable


Lower Temperature Rating: 78 Degrees Fahrenheit


Manufacturer: DaToo


Item Weight: 5.1 ounces


Item model number: DT-25A


Date First Available: July 17, 2020


Item Package Dimensions L x W x H: 5.43 x 2.8 x 2.28 inches


Brand Name: DaToo


Target Audience Keyword: fish


Size: 25W


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Dec 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Perfect size and perfect water warmer for lil GULPY
Size: 25W
Review Image by Mario Martinez Mario Martinez
Made the temperature of the tank perfect for lil GULPY it was easy to use came with easy to understand instructions. It looks good and very powerful for such a lil thing my betta is so happy and is now thriving before he was in a lil bowl and I felt bad always just laying around and realized his water was 65 degrees so he/she was miserable then I did research and found this lil heater that keeps the water a nice 77-80 degrees perfect for GULPY now her color has come back she swims more and overall looks a lot healthier. So thanks to this lil heater for making GULPY a Happy Betta ... show more
Reviewed in the United States on April 17, 2024 by Mario Martinez Mario Martinez
    • Nice little heater
Size: 25W
**Update- this heater keeps a rock solid temperature and works well in a 5 gal tank. Fyi- before doing a water change, be sure to unplug it and afterwards give it 15-20 mins before plugging it back in. This will let the glass cover stabilize and minimize a change of it cracking. Good heater!! This is a pretty good small heater. This is smaller than a traditional aquarium heater, and you can't set the temperature as its preset. (I did buy the temp adjustable DaToo as a backup in case this one didn't work out or happened to fail) I have found that it does not run at the stated 78 degrees, as the room temp seems to affect it. In a 5 gallon tank, with the room temp at 76.4 degrees, the heater warms the water to 80.4 degrees and keeps it rock steady at that temp. It tends to cycle ON for 4 minutes, then turn off for 12-13 mins. The red 'ON' LED is quite dim to see, the green OFF LED is a bit brighter, and the cord is on the short side. Am using for a Betta and so far so good, will be keeping an eye on it for reliability and how accurate it maintains temp. Before this, I was using one of those constant-on 5-watt heaters, in a 2.5 gallon tank. It did a good job but tended to overheat the water if left on constant. A work around was to use a electric outlet timer- set for 30mins on and 1hr off was able to maintain a stable temp without overheating. ... show more
Reviewed in the United States on November 16, 2023 by Mike
    • Busted in tank
Size: 25W
It worked fine but the glass just busted after 3 weeks being in the tank
Reviewed in the United States on April 16, 2024 by Amanda Miller
    • Pretty decent product for price
Size: 25W
I think overall it's a great heater for a small tank, not intrusive and heats/regulates itself. Only downside is the thermometer sticker; be sure you're certain where it's placed because it comes apart if you try to move it at all once it touches the glass
Reviewed in the United States on March 18, 2024 by B
    • Great for the price
Size: 25W
I wanted to improve my beta tank so I got this as a means to keep the water at the ideal temperature for betta fish. I’ve had it so far for 2 months and no issues yes, my fish often swims right up against it and my snail liked it too. Good compact little heater for a small fish tank, mine is 2.5 gals and it efficiently heats it without eating up too much room. ... show more
Reviewed in the United States on April 7, 2024 by Lexi
    • Heater Fried Our Fish
Size: 25W
Review Image by Cathy Tee Cathy Tee
On March 19th 2024 we purchased a "Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker" from this company. This morning we went into our grandsons room and saw his Betta fish stuck to the filter. When I went to lift the cover off the aquarium I discovered the water in the tank was extremely warm to the touch. I grabbed a thermometer and confirmed the tank was way to warm as is was 113 degrees. Unfortunately the fish died due to the heater malfunctioning and allowing the water to hit 113 degress instead of shutting off at 78 degress as your product advertising states. Amazon was polite enough to refund our money for the heater, but I feel that it's company's responsibility to refund the money lost to replace our Betta fish. The money is not a lot, but it's the principle that I asked them to reimburse us for the replacement fish. As of today I have not received a response from this company. The lack of response and the non responsive to thier customers makes this company a terrible place to buy anything from. ... show more
Reviewed in the United States on May 8, 2024 by Cathy Tee Cathy Tee
    • Suction cup sucks!
Size: 25W
Review Image by Ryan Ryan
Review Image by Ryan Ryan
Heater works well, keeps temp in specified range. However, the suction cup grew deformed and doesn't adhere to the glass, so it eventually starts floating around the tank which can be dangerous if you have hard swimming fish and hard scape. Not very durable in that sense. Accuracy of heater is good.
Reviewed in the United States on April 16, 2024 by Ryan Ryan
    • Works great
Size: 25W
Mine works great. I have ordered again, so I now have 2 25w for my small tanks. No problems whatsoever. Solid, consistent temp. One thing however, do NOT use the sticker that comes with it. It seems to work, but will not come cleanly off your tank when removed. Thermometers are not expensive, so buy a real one that goes on with a suction cup. I didn't want my fish's life to depend on a sticker. ... show more
Reviewed in the United States on March 24, 2024 by Natalie Hogan

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