The Reef Breeders ReefRhythm 850 is a high-performance, DC-powered protein skimmer engineered for superior waste removal in large saltwater aquariums. Designed for in-sump use, this skimmer efficiently strips dissolved organic compounds from the water column, resulting in improved water clarity, reduced nitrates, and a healthier environment for corals and fish. Its powerful performance and robust construction make it a cornerstone of filtration for serious reef keepers.

The ReefRhythm 850 features a fully controllable DC pump with nine distinct flow speeds and three integrated feed timers, allowing for precise customization to match your system's bioload. Its unique octagonal base maximizes reaction chamber volume while tapering into a cylindrical column to concentrate foam for efficient collection. Key specifications include a powerful 1600 GPH pump, a massive 450 GPH air intake, and a quiet-running needle wheel impeller paired with an air silencer, all within a space-saving 11.25 by 9 inch footprint.

This protein skimmer is the ideal solution for aquarists maintaining heavily stocked reef or fish-only systems ranging from 400 to 850 gallons. Its high capacity and tunable performance provide the flexibility needed to handle the demands of a mature aquarium with a heavy bioload. Hobbyists seeking a reliable, quiet, and highly efficient skimmer with advanced control features will find the ReefRhythm 850 to be an essential component for achieving pristine water quality.