Roti-Feast - Reef Nutrition provides a complete nutrition package, with millions of fully intact Brachionus plicatilis marine rotifers in each 6oz bottle. Its particle size between 40-250 microns makes it the ideal food source for SPS, LPS, and soft corals, plus sea fans, anemones, invertebrates, and small planktivorous fish including Anthias sp. and Chromis sp. This nutrient-rich feed is sure to provide the best health for your corals and fish.