The aquarium circulation pump is ideal for freshwater, saltwater and coral reef aquariums. 360° rotatable bracket and nozzles for stronger wave effect. Simulate the natural ecological environment and disperse the waterways. Suitable for 1.5-2m aquariums. 360 degree free rotation, multi-piece ceramic bracket, super quiet. Triangular rubber base, stable motor vibration and isolates the collision noise of the housing. Clean fish food and droppings at the bottom of the aquarium faster, reduce water pollution. Strengthen the exchange of microorganisms in the water and keep the aquarium clean. The suction cup can avoid scratching the aquarium. Just move the suction cup except the fish tank to adjust the position of the pump. The suction power of the suction cup depends on the thickness of the aquarium glass. Important: In order not to break the aquariums, please don’t let the anode and cathode together when you install the magnet. Please install it correctly according to the user manual.