DO NOT REFRIGERATE! Pop the cap upon arrival and during acclimation. After acclimation to room temperature, Apex-Pods should be added to the tank or culture vessel within 24 hours of arrival or purchase from a store. Depending on predators and tank size, Apex-Pods may need to be replenished routinely. To help promote a population, it is recommended that you feed phytoplankton to the tank often. Our Phyto-Feast is an ideal food for these animals and will also provide nutrition for many other invertebrates in your reef aquarium.