Water polymer crystals absorb up to 400 times their weight in water, and are the main ingredient in most commercial insect and cricket water type products. Polymer water crystals are the perfect source of moisture for your feeder insects. They are non-toxic, help to prevent drowning of the insects, reduce the chances of bacterial contamination, and they can be fortified with calcium or vitamins. They are easy to store and rehydrate, and have an indefinite shelf life until hydrated. Mix 1 tsp with 3 cups of warm water (or 2 oz with 1 gallon of warm water) and let stand for 1-2 hours. Excess water can be drained off or allowed to evaporate. Add more water as needed if the crystals start to dry out. Dry & moistened crystals should both be stored in sealed containers