The Reef Nutrition Roti-Feast is available for pick up in-store only. Roti-Feast contains millions of fully intact Brachionus plicatilis marine rotifers eggs. Roti-Feast is a highly nutritious plankton feed excellent for hard corals, larval fish, and other reef carnivores that feed on small zooplankton. Rotifers are a critical feed used in marine fish and invertebrate hatcheries around the world. To store Roti-Feast keep refrigerated at all times.