Aquatic Finatic Betta Mini Aquarium Heater 20W
Betta Thermal Compact Submersible Aquarium heater features a reliable circuit and high quality materials to ensure consistent heat output and maintains stable water temperature inside the aquarium. Temperature can be adjusted between 20 – 34 degrees Celsius.
Product Specifications
| Feature | Detail |
|---|---|
| Heater Power | 20W |
| Operating Temperature Range | 20 – 34°C |
| Heater Type | Submersible |
| Material | High-quality, durable plastic and metal components |
FAQ
What is the temperature range of the heater?
The heater can maintain water temperature between 20 and 34 degrees Celsius.
Is the heater safe to use in a small aquarium?
Yes, the compact design and reliable circuit make it suitable for small aquariums like those housing betta fish.
How long does it take to reach the set temperature?
Please contact customer service

Alan Henderson –
The heater works steadily and keeps my betta’s water temperature consistent. Easy to install and doesn’t cause any water disturbances. Perfect for a small tank.
Paul Henderson –
I’ve used it for two months now and the temperature stays stable. The unit is compact and fits well in my 5-gallon tank. No overheating issues reported.
Sonia Terry –
Very reliable. The temperature control is accurate and the heater doesn’t make the water too hot. My betta seems more active and healthy since I added it.