ZoPlan is a blend of dried crustaceans and other sea creatures in a size range that makes it an ideal food for filter-feeding marine invertebrates such as soft and stony corals, gorgonians, seafans, anemones, zoanthids, hydrozoans, clams and featherdusters. Particle size range includes Nanoplankton, Microplankton, Microplankton and Macroplankton. Also a food for plankton eating fishes or larval fishes.