This is the product with the tiniest particle size and is made up of Phytoplankton Paste – Tetraselmis and Nanochloropsis, with Brachionus Rotifers added. This food is simply awesome for SPS corals, Sponges, Clams, and other critters which “filter-feed” on “teeny-weeny” foods. (5 microns up to 150 microns) Ingredients & Analysis: Phytoplankton paste (Tetraselmis, Nanochloropsis), Rotifers (Brachionus), food-grade alcohols, fermentation products, salts, water, food-grade humectants, vitamin A acetate, DLAlphatocopherol (Vit. E), D-Activated Animal Sterol (Vit. D3), Vitamin B-12 Supplement, Niacin, Folic Acid, Biotin, Thiamine, Riboflavin Supplement, Pyrodoxine HCL, Calcium Pantothenate, Stabilized Vitamin C, Choline Chloride, Cobalt Sulfate, Ferrous Sulfate, Manganese Sulfate. Protein (Min.); 2.9%, Lipids (Min.); 2.0%, Fiber (Max.); 0.2%, Moisture (Max.); 32.1%, Phosphorus (Max); 0.04%