Tetra Preset Submersible Aquarium Heater, 100W, up to 30 Gallons

Brand new This Tetra Submersible Aquarium Heater keeps your aquatic creatures comfortable by maintaining optimal water temperature. Silicon carbide crystals improve heat distribution and transfer in tanks up to 30 gals in size. The strong glass tube is shock resistant, and it's easy to use with no adjustments required. The Tetra aquarium heater keeps the temperature at 78 degrees Fahrenheit to aid in the survival of your delicate underwater family. It features indicator lights, so you're assured the water is at the right temperature with just a glance.Tetra Submersible Aquarium Heater, 100 Watts:Designed for aquariums up to 30 gals. Electronic thermostat keeps water temperature at a constant 78 degrees Fahrenheit. Electronic aquarium heater keeps your aquatic creatures comfortable. Maintains optimal water temperature at all times. No adjustments required. Prevents overheating, extending heater life. Indicator light lets you know when the water is being heated (red light) and when it is at the proper temperature (green light). Silicon carbide crystals improve heat distribution and transfer. Strong glass tube is heat and shock resistant. Tetra aquarium heater is easy to use.