Circulation pump for freshwater and marine aquariums. Designed for use with timers and wavemaker systems. Includes magnet-suction cup mounting system for free positioning in aquarium. Features New higher flow rate in our Koralia Nano range! 565 GPH delivers more flow than before Magnet-Suction cup support for free positioning in aquariums Safe for use with wave timers Compact design and low energy consumption Item Weight - 0.65 lbs. Dimension - 5.5 L x 3.75 W x 3.75 H in.