Hydor Betta Bowl Slim Fish Tank Heater, 7.5-watt, measures 3.5 inches round, black; For tanks 2-5 gallons
Betta slim heater helps guarantee your fish a healthy life by promoting the ideal water temperature. Specially designed with the innovative positive thermal coefficient element to heat the temperature of your bowl, aquarium or terrarium an average of 5 to 10-degree warmer than room temperature.
