Brightwell PhytoGreen-M Phytoplanton Suspension Brightwell PhytoGreen-M Phytoplankton Suspension provides over 650 million phytoplankton cells per ml. Formulated by a marine scientist, Brightwell PhytoGreen-M Phytoplankton Suspension has been formulated to provide phytoplankton ranging and helps in the coloration of invertebrates. It is ideal for invertebrates like corals, clams, sponges, tube worms, etc. It is supplemented with a proprietary amino acid and should be stored in a cool place. Product Features: It is formulated to provide over 650-million phytoplankton cells per ml. Supplemented with a proprietary amino acid to aid in coloration of invertebrates. It does not require refrigeration. Item Specifications: Size: 8 oz 17 oz