Hydor 7.5W Slim Heater For Bettas And Bowls, 2 To 5 Gal

Hydor 7-1/2-watt Slim Heater helps guarantee your fish a healthy life by promoting the ideal water temperature. Specially designed with the innovative PTC (Positive Thermal Coefficient) element to heat the temperature of your aquarium or terrarium an average of 5 to 10-degree warmer than room temperature. Designed for aquariums between 2 and 5-gallon.