Aqueon Pro Heater

Precision Calibrated Aquarium HeatersPower monitor light Red: Heating Green: Aquarium has reached set temperature Electronic thermostat for accurate temperature settings and safety Automatically turns off if heater is left out of water Resets and works normally when placed back in water Shatterproof and nearly indestructible Durable aluminum core for strength and even heat distribution No glass components Fully submersible Can be placed vertically or horizontally in the aquarium Large temperature control knob makes modifying the temperature easy For freshwater or marine aquariums