The Fluval Sea CP4 Circulation Pump recreates natural reef currents to maintain a thriving aquarium ecosystem. Its compact design takes up minimal space while delivering efficient hydraulic performance that reduces energy consumption and lowers electricity costs. The pump produces a smooth, wide current pattern that mimics ocean conditions, operating with remarkably low noise levels. Adjustable flow direction lets you customize water movement to suit your tank's needs. Compatible with timer systems (sold separately) for automated operation without risking pump damage. Ideal for freshwater and saltwater aquariums up to 90 gallons.