Hydor 7.5w Slim Heater for Bettas and Bowls, 2 to 5 galFruit blend flavor with natural flavors provides healthy and delicious nutrition for everyday Feeding for birds that prefer this pellet size. Fruit colors, shapes and flavors with the essential nutrients your bird needs every day for good health. Helps guarantee your fish a healthy life by promoting the ideal water temperature. Plug and Play, No temperature to set Can be positioned under gravel No glass components Heater is UL listed