DOPHIN Mini Heater (10W / 25W)
Dophin Mini Aquarium Heater Series (includes models AH-1001 and AH-1002) is the definitive solution for small and nano tank temperature stability. These Preset Aquarium Heater units are designed for reliability, ensuring safe, consistent thermal control by automatically maintaining a set temperature of 25 C.
Choose the efficient 10 W for nano tank or the robust 25 W for your small tank, upto 30 Liter Tank.
Key Features
- Fixed Temperature Safety: The internal thermostat locks the temperature at a fish-safe 25 C, eliminating manual adjustment errors.
- Targeted Small Tank Heating: Ideal for tanks ranging from 5-10 L (using the 10 W Heater / AH-1002) up to 30 L (using the 25 W Heater / AH-1001).
- Compact & Safe: Fully submersed design with shatter-resistant construction ensures safety for both the aquatic life and the user.
- Simple Operation: Functioning as a true Automatic Submersible Low Wattage Heater, simply plug in the unit, and it handles the rest.
| Model No. | AH-1002 | AH-1001 |
| Power Consumption | 10 W | 25 W |
| Ideal Tank Volume | upto 10 Litres | 20-30 Litres |
| Key Application | Betta / Nano Tank Heater | Small Cubes / Hospital Tanks |
The Dophin Preset Aquarium Heater Series offers robust, compact heat management making it the ideal thermal solution for nano tanks, breeding boxes, hospital tanks, and betta setups. Never worry about temperature fluctuations again with this compact and essential Mini Aquarium Heater.

















D Sarkar (verified owner) –
Only works for nano tanks such as 9 inches cube or even lesser than that. Not worth buying unless you are in Southern India where the temperature does not drop below 15 degrees. Rather buy a 25W stainless steel heater for the same or lesser price from any good brand.