Whale... let us start by saying that Dino Food is to dinoflagellates (dinos) as plant food is to plants. If you fail to feed a potted plant it will not suddenly die but instead, over time, will suffer nutrient deficiencies. You can overfeed a plant just as you can overfeed your Dino Pet. Please...Do not overfeed! Dino Food is composed of nutrient-rich seawater. BioPop recommends feeding your Dino Pet 1/5 of the pouch once every 7-10 days. To make room for Dino Food, pour out some of the contents. You can pour your dinos into a sterile, clear container to start a new population (a mason jar with a lid works great!). One pouch of Dino Food contains 5 feedings. Dino Food can be purchased in multiple packs from the BioPop website, and stored in a cool dry location for up to 6 months.