Polyp Lab Reef-Roids is a premium coral food designed to enhance the growth and coloration of filter-feeding corals in your aquarium. This 150g pouch contains a nutrient-rich blend of naturally occurring marine planktons, including a unique species of zooplankton exclusive to Reef-Roids. The particle size ranges from 150 to 200 microns, making it ideal for corals such as Goniopora, Zoanthids, Mushrooms, and Ricordia.