Brightwell Aquatics Zooplanktos-S is a concentrated suspension of phytoplankton-enriched adult Brachionus sp. rotifers, their eggs, and the eggs of another group of crustaceans. This product provides zooplankton and fully-digestible unhatched eggs ranging in size from 50 to 300 microns, making it an excellent food source for a variety of marine organisms. It is formulated to provide over four thousand prey items per milliliter, ensuring ample nutrition for stony corals, clams, sponges, tunicates, tube worms, larval crustaceans, juvenile fishes, and adult planktivorous fish species. The product is also supplemented with a proprietary amino acid that aids in the coloration of invertebrates and fish, enhancing their vibrant appearance.