E.S.V. Spray-Dried Marine Phytoplankton (SDMP) effectively eliminates the need for purchasing or culturing live phytoplankton cultures for your reef aquarium. Phytoplankton is an important first step in initiating a food chain within your closed ecosystem which more closely simulates a natural coral reef food chain. Daily addition of SDMP will not only directly feed the larger inhabitants of your reef aquarium, but also promote the production of zooplankton which in turn can also be a valuable food source for your reef inhabitants. Depending on the feeding method employed, SDMP functions as a filter-feeder food for corals and other invertebrates, fish food, larval fish and invertebrate food, and an enrichment food for Artemia and rotifer culture. The abundance of Highly Unsaturated Fatty Acids found in this strain of marine microalgae causes the foam in protein skimmers to collapse for a few hours allowing the algae cells longer residence time in your aquarium before being exported by skimming. We provide a measuring spoon with each container. Each level spoon of SDMP contains approximately 60 milligrams which is equivalent to 150,000,000 algae cells.