Aoibox Small Submersible Aquarium Heater Adjustable Mini Fish Tank Heater 25W with External Temperature Controller LED Display for 5 Gallons

Looking for a reliable heater for your small fish tank? Our 25W submersible aquarium heater is the perfect choice. With a compact 4.3 x 1 x 1 inches size, it fits well in 1 - 5 gallons tanks. The heater can adjust the temperature from 64 to 93°F, suitable for both saltwater and freshwater. It uses advanced intelligent frequency conversion technology to maintain a constant temperature with 1°F accuracy, cutting down 49% of the electricity bill. The overheating and out - of - water protection ensures the safety of your fish. You can set the temperature using the external controller without wetting your hands. The built - in sensors display the water temperature in real - time, and it has a power - off memory function. Remember to clean the suction cups monthly and check the glass tube before installation. This heater is a great addition to your small aquarium, providing a stable and safe environment for your fish.