Aqueon Circulation Pumps are crafted to replicate the natural currents of rivers and reefs in authentic aquatic settings. These pumps come with a strong locking suction cup that reduces vibration for quieter performance. The unique ball and socket design enables precise control over the direction of water flow. With an energy-saving motor, these pumps enhance water circulation while consuming less electricity. Available in five different sizes, the Aqueon Circulation Pumps are suitable for both freshwater and saltwater aquarium environments. Reproduces natural river and reef currents through constant water circulation Effortless installation, adjustment, and removal with the easy-lock suction cup Efficient motor boosts water flow while conserving energy Perfect for use in freshwater or saltwater aquarium setups Adjustable water flow direction thanks to the ball and socket connection Flow rate of 500 Gallons Per Hour (GPH); Best suited for 20-40 gallon tanks