Fluval Sea CP1 Circulation Pump is a compact, energy-efficient pump that simulates natural reef currents in aquariums. It provides continuous water movement to improve circulation and oxygenation, benefiting fish and corals. With an adjustable flow direction and exceptional hydraulic performance at low energy usage, the CP1 creates gentle, broad currents without taking up much space, enhancing the aquatic environment for marine or freshwater tanks up to ~15 gallons.