Zoo Med Betta Therm -Betta Therm

Zoo Med BettaTherm Mini Size Betta Bowl Heater (ZM366) Completely submersible Mini Size Betta Bowl Heater! Increases water temperature 5-10oF over ambient room temperature. Mini Size Betta Bowl Heater! Now with Thermal Shut Off at 26oC Completely submersible (Bury under gravel). Increases water temperature 5-10oF over ambient room temperature. Fits most fish or Betta bowls. Can be used on both glass and acrylic tanks