Aquarium Heaters Glofish

GloFish Submersible Heater is designed to keep your aquatic fish comfortable, with an electronic thermostat that automatically maintains a consistent water temperature of 78 degrees and prevents overheating, extending heater life. An indicator light lets you know when the water is heating (red light) and when it reaches the proper temperature (green light). Inside, silicon carbide crystals improve heat distribution and transfer. The strong glass tube is heat and shock resistant. This submersible heater is easy to use - just attach to the inside of the aquarium wall using the suction cup (included) in an area with good water circulation. Use the GloFish Submersible Heater in aquariums up to 10 …