Zoo Med Paludarium HeaterZoo Med Paludarium Programmable Heaters are fully submersible and feature an easy to read digital temperature display, allowing you to maintain precise control. The heater easily attaches to the tank wall with powerful suction cups and will automatically shut off if removed from the water to prevent overheating. Programmable heater for aquatic habitats Helps prevent appetite loss due to low temperatures Fully submersible with auto shut off if removed