The Pulaco Aquarium Heater is a 25W submersible heater designed specifically for 1 to 6 gallon tanks housing Betta fish, turtles, and other aquatic pets. It is capable of maintaining water temperatures around 78℉, making it suitable for all water types. The model number PL-168 ensures easy identification and compatibility with your aquarium setup. This heater is a reliable and efficient choice for pet owners looking to regulate the temperature of their fish and turtle tanks.