The Junior Heater is designed as a submersible preset tank warmer and will assist in controlling the water temperature in aquariums. By regulating the water temperature in your aquarium, you can have a wider variety of fish. The Junior Heater should be used along with a thermometer to monitor water temperature.
The most cost effective way to heat small aquariums The Junior Heater is designed as a preset tank warmer and will assist in controlling the water temperature in aquariums between 2 and 5 gallons in size. 4 inch / 7.5 watt