Live phytoplankton is the basic building block of the ocean food chain. It adds biodiversity to your tank and feeds corals, clams, copepods and other filter feeders. The copepods and other microfauna which feed on our live phytoplankton will in turn become food for your fish and corals. Live phytoplankton, and the microfauna it supports, contribute greatly to the health and stability of your reef. Our live phytoplankton blend contains six different strains of phyto to provide balanced and well rounded nutrition for your tank’s inhabitants. Corals are like all other animals - they need a wide variety of minerals, vitamins, and fatty acids for optimal health. Simply feeding one or two species of phytoplankton won’t provide the diversity of nutrients that our six species blend offers. We recommend checking out our dosing guide to determine how much and frequently to dose for your unique needs. Our phytoplankton should be stored in the refrigerator and given a gentle shake every couple days. If stored like this, it should last at least two months. Buy With Confidence Shopping for live goods online can be stressful, but we use best-in-industry shipping practices such as biodegradable styrofoam boxes, checking your weather and including heat​​/​​ice packs as needed, and sending all orders with UPS two day shipping. If anything goes wrong, we have your back with our completely hassle-free, no-questions-asked Dinkins Delivery Guarantee.