Experience effortless heating with the Zoo Med Paludarium Aquarium Heater, designed with a 25-watt capacity to warm up to 7 gallons of water. Easy Setup: Just secure it to the inner wall of your turtle’s habitat and connect to power. It automatically maintains the water at a cozy 78°F (26°C). SAFETY FEATURE: The device powers down if taken out of water to prevent damage. USAGE: Ideal for Paludarium setups holding up to 7 gallons of water*. (*Must be used in 7 gallons and fully submerged.) Attach to the side or rear of your aquatic turtle tank with the provided suction cups. Ensure the heater is completely underwater before connecting to an electrical source. If removed from water, the safety shut-off engages. Expect the water to stabilize at the desired temperature within 1-3 hours. Position the heater close to the filter output for optimal warm water distribution.