The water is directed via a removable surface skimmer to the bespoke micron filter sock, and from there to your MAX protein skimmer. The skimmer implements Crimson Sea’s REEF-SPEC criteria for SPS corals, passing the whole volume of your aquarium h2o as a result of the skimmer about 3 times for every hour and by using a 3 to 1 water-to-air ratio