Submersible Aquarium Heater

Unlike humans, fish always rely on the temperature of the water to maintain their body temperature. Therefore, the temperature of your aquarium is an important factor in the comfort and well-being of your fish. This aquarium heater will keep your tank at a constant temp especially in cold days, with a temperature range between 68-93?. Help your tropical fish and other aquatic pets to keep away from stress and disease by providing proper temperature. This heater is only suitable for freshwater and marine saltwater.