Zoo Med BettaTherm Betta Heater 7.5W
Submersible heater designed specifically for betta fish. Operates at 240V with a power output of 7.5W. Must be fully submerged when in use. Miniature size ideal for small betta bowls. Can be placed beneath gravel for secure positioning.
Raises water temperature by 5–6°C above ambient room temperature. Suitable for both glass and acrylic tanks.
Specifications
| Feature | Detail |
|---|---|
| Power | 7.5W |
| Voltage | 240V |
| Diameter | 7.6cm |
| Compatible Tank Size | 3.5L – 11L |
| Material | Plastic |
FAQ
Can this heater be used in a tank with a temperature below 20°C?
Yes, the heater will raise the water temperature by 5–6°C above room temperature, so it can be effective in cooler environments.
Is the heater safe to use with gravel or sand at the bottom of the tank?
Yes, the heater is designed to be fully submerged and can be placed beneath gravel or sand for stability and secure positioning.
Does this heater require any special installation or wiring?
No, it is a plug-and-play submersible heater that simply needs to be placed in the water and turned on.
Sam Baker –
Works perfectly in my 5L betta tank. Keeps the water warm even during colder months. Easy to install and stays stable under the gravel. No issues with overheating or leaking.
Brian Hudson –
Good heater for a small tank. Maintains consistent temperature. A bit small for larger tanks, but ideal for betta bowls. Works well with my 7L tank.
Emma Hemmings –
Very reliable. Keeps water temperature steady. Submerged under gravel and doesn’t float. No flickering or power issues after several weeks of use.