In their natural habitats, hermit crabs drink small amounts of sea water to stay healthy. It eases the molting process and aids in the hardening of your crab's exoskeleton after molting has occurred. When added to a second water dish, this specially formulated solution removes chlorine, chloramines, and ammonia from your crab's water supply, while simultaneously promoting optimal health of your little critters. *Use in conjunction with Hermit Crab Drinking Water Conditioner, to ensure optimal water quality. Use as directed for best results.