Our Super Hydrating Water Crystals are the best way to provide water to your feeder insects. The crystals swell up when water is added, and create a safer, cleaner way to hydrate your insects. Roughly 1 OZ of dry crystals makes 1 gallon of water crystals. Water crystals can be rehydrated as they dry out, provided that they are not dirty or contaminated with any foreign debris. The dry crystals now come in a reusable sure-grip jug. Product images show hydrated crystals made and stored inside the jug, and bagged dry crystals.