Flow adjustable water pump is designed fully submersible for both fresh water and saltwater. This pump creates water flow and aerates your aquarium to simulate a natural ocean/river environment. The pump is a must-have accessory for your fish tank, fountain and more. Submersible water pump for aquarium, fountain, fish pond, etc. The flow rate is adjustable with a knob in front of the pump With 2 suction cups at the bottom and is to be used in water only.

check out : DC Submersible Aquarium Pump 6V-12V 4W-5W 500L/H