[Powerful] Upgrade 6W Black-Shark powerful air pump, 150 GPH large air volume, can be used for 50-300gallon fish tank, hydroponic system or small pond. It also can be used for several tanks at the same time..[Silent] Double-layer structure (A built-in air pump and an outer thickened shell). Which effectively prevents the inside noise from spreading. The elastic rubber feet at the bottom absorb the vibration generated when the air pump provide oxygen, further reducing the noise..[Accessories] This fish tank air pump is equipped with: super big air stone*2, 4.9ft air tube*2, check valve*2, airflow regulating valve*2, suction cup*2, T-connector*1. Meet various usage needs..[Interesting] This air aerator imitates the shape of shark, which is practical and interesting at the same time. Both sides of the air pump can be lighted, and the light has a switch button, which can be controlled freely..[Adjustable] The knob on the air pump can effectively control the air volume, which is precise, suitable for fish tanks of many sizes. We offer a 12-month warranty.