QL-300M circulation pump for fresh and saltwater aquariums Ideal for aquariums. 360° rotating nozzles create a stronger wave effect. Simulates the natural environment and disperses water flows. Cleans food and fish droppings at the bottom of the aquarium faster, reduces water pollution, enhances the exchange of microorganisms in water, and keeps the aquarium clean.< /p> 360 degree free rotation, super quiet. Rubber base construction, stable motor vibration, and isolate the noise of case collision. The suction cup can avoid scratching the aquarium. Simply move the suction cup out of the aquarium to adjust the position of the pump. Important: Please strictly review the installation and environmental instructions before using the flow pump. The pump is 10000 l/h, 15 W. Package size: 1810.59.5cm. Number of shipments: 1 pcs.