The Mylivell Aquarium Heater is a high-quality water heater that is perfect for use in both fresh and salt water aquariums. Made of high-quality quartz glass, this water heater features a double seal construction that ensures safe operation. With a 200W power rating, this water heater provides a warm and constant environment for your tropical fish to stay healthy. The two suction cups make it easy to attach to the fish tank, and the polarized plug prevents electrical shock.