?Elegance and beauty.Hanging mode design, safety and stability. ?The coil is far from the water surface of the fish tank and will not cause danger of short circuit. ?Adjustable jaws can clamp the the cylinder wall that the thickness within 1.2cm,meet the daily use of fish tanks ?Freely adjusting wind speed, strong wind, depending on the weather and indoor temperature, the temperature can be reduced by 2-4 degrees Celsius. ?This is a cooling fan for freshwater and saltwater aquariums. The wind is strong. You have two kinds of wind intensity to choose from. It reduces the heat transfer from aquarium equipment. It is quieter and more flexible than ordinary fans.