Betta Choice Mini Aquarium Heaters for Nano Fish Tanks 10W
Betta Choice Mini Heaters are suitable for warming the water in the smallest ‘nano’ aquariums. These fully submersible heaters are pre-set to heat the aquarium up to a maximum of 25°C, which is perfect for most tropical fish.
- Completely submersible & double sealed for extra safety
- Suitable for all tropical aquariums and vivariums
- Ensures an even heat output for a constant water temperature
- LED light to indicate when the heater is working
- Temperature Range: up to 25°C
| Feature | Detail |
|---|---|
| Heater Power | 10W |
| Maximum Temperature | 25°C |
| Submersion Type | Fully submersible |
| Sealing | Double sealed |
| Indicator | LED light |
FAQ
What is the maximum water temperature the heater can maintain?
The heater maintains a maximum water temperature of 25°C.
Is the heater safe for small aquariums?
Yes, it is fully submersible and double sealed for added safety in small tanks.
Does the heater have a temperature indicator?
Yes, it features an LED light to show when the heater is actively working.

Jake Baker –
I used this heater in my 5-gallon nano tank and it kept the water stable at 25°C. The LED light is helpful to know when it’s on. No issues with overheating or leaking. Works well for my betta fish.
Kylie Hart –
It’s compact and fits perfectly in my small tank. The temperature stays consistent, and the double seal gives me peace of mind. A simple but effective solution for small aquariums.
Faith Robertson –
Installed it in my new nano tank last week. The water temperature remains steady, and the heater doesn’t make any noise. The LED indicator is easy to see. Very reliable.