Provides phytoplankton ranging in size from 4 - 10-µm. Highly concentrated; ideally-sized for many soft corals, clams, sponges, tunicates, tube worms, bryozoans, larval crustaceans, and juvenile fishes. Formulated to provide over 75-million phytoplankton cells per ml. Supplemented with a proprietary amino acid to aid in coloration of invertebrates. Does not require refrigeration. Formulated by a marine scientist