Hero image 0 of DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker, 0 of 7
DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker
Key item 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 78°F. This temperature is very suitable for betta and most tropical fish. When the water temperature is lower than 78°F, the heater starts to heat and the red light is on. When the temperature reaches 78°F, 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!
Specs
- Watts25
- MaterialQuartz glass
- AccessoriesFree Thermometer Sticker
- Power typeCorded Electric
Reviews summary
Pros
- : Maintains accurate temperature for betta fish.
- : Maintains temperature within a narrow range.
Generated by AI
Current price is USD$8.99
Price when purchased online
Free 90-day returns
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Columbus, 43215
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Sold by DaTooDirect
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4.309417040358745 stars out of 5, based on 223 seller reviews(4.3)223 seller reviews
Free 90-day returns
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About this item
Product details
The Smallest 25Watt Aquarium Heater For Your needs
Specification:
Power: 25Watt
Voltage: 110V~120V/50~60Hz
Heater Size: 4.9*0.9*0.9inch
Power cord: 3.9ft
Application: 1 to 5 gallon aquarium
Features:
- The Smallest 25W Heater On The Market
- 78°F 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°F. 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!!
Specification:
Power: 25Watt
Voltage: 110V~120V/50~60Hz
Heater Size: 4.9*0.9*0.9inch
Power cord: 3.9ft
Application: 1 to 5 gallon aquarium
Features:
- The Smallest 25W Heater On The Market
- 78°F 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°F. 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!!
- 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 78°F. This temperature is very suitable for betta and most tropical fish. When the water temperature is lower than 78°F, the heater starts to heat and the red light is on. When the temperature reaches 78°F, 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!
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Watts
25
Material
Quartz glass
Accessories
Free Thermometer Sticker
Power type
Corded Electric
Directions
Instructions
Please make sure that the heater is completely submerged in the water when in use. Please make sure that the heater is completely submerged in the water before turning on the power.
Warranty
Warranty information
One Year Warranty and 100% Money-back Guarantee. Buy DaToo products with confidence. JUST DO IT, Let’t Go!!
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
WARNING: WARNING: 1. Please make sure that the heater is completely submerged in the water when in use. 2. Please make sure that the heater is completely submerged in the water before turning on the power.Popular items in this category
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Customer ratings & reviews
How item rating is calculated
Reviews summary
Pros
- : Maintains accurate temperature for betta fish.
- : Maintains temperature within a narrow range.
Generated by AI
Customer images
Sort by |
Showing 1-3 of 50 reviews
Jan 9, 2026
foxnichol
5 out of 5 stars review
Verified Purchase
I love this little heater that I put in my one gallon tank. It works great and the temp stays close to 78 degrees.
Helpful?31Y7OWVVP3LV385614931
Dec 9, 2025
JayB
5 out of 5 stars review
Verified Purchase
works great, fast shipping
Helpful?31Y7OWVVP3LV385614931
Nov 17, 2024
Clint
5 out of 5 stars review
Verified Purchase
not sure how accurate the temp is? butt it does cycle on and off. my mistake. i was looking for something hotter.
Helpful?31Y7OWVVP3LV385614931
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