Betta Aquarium Compact Fish Tank Heater 25w
Betta Thermal Compact Submersible Aquarium heater features a reliable circuit and high quality materials to ensure consistent heat output and maintains a steady water temperature inside the aquarium.
Product Specifications
| Feature | Detail |
|---|---|
| Heater Power | 25w |
| Water Temperature Range | 20-34°C |
| Compatible Aquarium Size | 5-20 litres |
| Design | Totally submersible |
FAQ
What is the temperature range of the heater?
The heater can maintain water temperature between 20°C and 34°C.
Is the heater suitable for small aquariums?
Yes, it is designed for aquariums ranging from 5 to 20 litres.
How does the thermostat work?
The thermostat automatically adjusts the heating to maintain a steady temperature within the set range.

Owen Hudson –
The heater works steadily and keeps the water temperature consistent even on cooler days. Easy to install and fits perfectly in my 10-litre tank. No overheating issues reported.
Madeleine Campbell –
Good performance for a small tank. Temperature stays stable between 25 and 30°C. A bit slow to respond when the tank cools down, but overall reliable.
Eric Walsh –
I’ve used it for three months now and it’s still functioning well. The design is compact and doesn’t take up much space. Works perfectly with my betta fish.