Zoo Med Bettatherm Betta Bowl Heater 7.5 Watt

This convenient small round heater is a perfect fit for most fish or betta bowls. It's fully submersible and can be buried under gravel. Suitable for both glass and acrylic tanks and bowls, it can raise the water temperature by 5 - 10 degrees compared to the ambient room temperature. With a 3 - inch diameter, it packs a punch in a compact size. Size: 7.5 Watt.

Using this Zoo Med heater is easy. First, make sure your fish or betta bowl is filled with water. Then, submerge the heater completely and you can bury it under the gravel if you want. It works well in both glass and acrylic containers. Just let it do its job and it'll warm the water 5 - 10 degrees above the room temperature. When it comes to maintenance, regularly check the heater for any signs of damage. If you see cracks or other issues, stop using it right away. And always unplug it before cleaning or making any adjustments. This way, you can keep your fish's water at a nice, warm temperature for a long time.