Hermit crabs love brine shrimp! You can also purchase pellets designed for hermit crabs at your pet store or even walmart. Never feed a hermit crab anything that is not organic. Pesticides are very dangerous to a hermit crab as they are very closly related to some insects. Also, chlorine is harmful to them as well. So be sure to de chlorinate your water and wash any fruits or vegatables you give them.