8,000 l/h output with 12 W energy consumption Individually adjustable flow direction thanks to swiveling pump head Water-resistant ceramic shaft resists wear and corrosion Suitable for fresh water and salt water This pump is one of the most efficient models available for aquariums, particularly marine aquariums. Known as wavemakers, these pumps create water movement that simulates natural ocean currents. This flow provides corals and other marine life with the necessary current for optimal health and survival. Pumps are often positioned opposite each other to create intersecting currents, resulting in a more natural water movement. The mixing action helps prevent the accumulation of unwanted sediments on the aquarium bottom. For maximum effectiveness, the pump is mounted directly onto the aquarium glass using a magnetic holder.