Fits most round bowls glass or acrylicRaises temperature 5-10 degrees above room temperature3 diameter"Bury it under the gravel
Your betta lives the best in warm water and the Bettatherm Betta Bowl Heater keeps your betta bowl 5-10 degrees warmer than your room temperature. Fully submersible design is round and fits most glass or acrylic bowls.
Brand: Zoo Med, Model: BH10, Color: Black, Size: 7.5 WATT