Highly concentrated aquacultured, nutrient-rich phytoplankton. It is proprietary blend of Nannochloropsis, Tetraselmis, Tahitian Isochrysis, Pavlova and Thalasiosira weissflogii. With 5 different algae species, PlanktoMarine P can feed a wider range of organisms due to cell sizes ranging from 2 to 20 microns.