The Zoo-Med Paludarium Heater 100w is ideal for larger paludariums and aquatic habitats, suitable for up to 30 gallons of water. This robust heater is fully submersible and features a digital temperature display, allowing for precise temperature control. Its safety features include an auto shut-off mechanism when the heater is removed from water. It can be securely mounted using suction cups and is programmable to maintain water temperatures between 68-93°F (20-34°C). This heater is essential for creating a stable and healthy environment for a variety of aquatic and semi-aquatic species.