1With novel appearance design, stable and reliable circuit, high quality material ensure the heat output, so that the water temperature in the aquarium remains stable. 2Fully submerged, with power indicator light, support automatic temperature adjustment, double sealed waterproof design. 3Stainless steel heater is only suitable for fresh water (sea water cannot be used); Glass heater is suitable for light and salt water. 46 kinds of power to choose from, suitable for different people's needs. 5Come with 2 suction cups, easier to install.