To maintain and clean your aquarium heater, follow these steps:n1. Unplug the heater and let it cool down.n2. Remove the heater from the tank.n3. Gently wipe the surface of the heater with a soft cloth to remove any debris.n4. Check the heater for any signs of damage or wear.n5. If necessary, use a brush or cotton swab to clean the heater's vents or crevices.n6. Rinse the heater with clean water.n7. Before reattaching the heater to the tank, ensure it is completely dry.nRegular maintenance and cleaning can help prolong the lifespan and ensure the efficient operation of your aquarium heater.