David Saxby's Main Reef Tank

This is David Saxby's world-famous 4,000-liter display reef tank, part of a 12,000-liter total system. It houses approximately 400 fish and a variety of corals, maintained with extensive filtration including roller mats, phosphate reactors, and a nitrate filter. The owner feeds the tank five times a day and rarely performs water changes, relying on the robust filtration system.