Application: The shaft pump improves water circulation and oxygenation, which is good for the healthy growth of fish. Made from corrosion resistant impellers, safe to use in fresh and salt water, all types of aquariums, aquatic grass aquariums, coral aquariums Features of flow pump d Aquarium: 3000 l/h aquarium circulation pump + 1.98 m cable, wear-resistant suction cup with high adsorption power, easy to attach. The suction cup can avoid scratching the aquarium.Powerful water flow: powerful and powerful flow (3000 l/h) Clean fish food and feces at the bottom of the aquarium faster, reduce water pollution, strengthen micro exchange -organisms in the water and keep the aquarium clean.Safe and Easy to Install: With a suction cup that is easy to install and allows you to position the pump virtually anywhere in your aquarium. An adjustable ring with fine slots keeps baby fish, corals and starfish from getting involved.Quiet and 360 rotatable: 360 degree free rotation, very quiet, provides full control over the direction of the river, creating natural water movement, rubber-based construction, stable motor vibration and isolates noise through the housing.