[header] How to care for molting hermit crabs [title] Track how much food and water your hermit crab consumes. [step] Pre-molt hermit crabs consume more food and water in order to prepare for the time they will spend resting before and after their molt. In most cases, these crabs are below the substrate where they will not have access to their food and water. 
[substeps] The excess food and water is stored in a molting sac where it can be accessed throughout the molt. Your crab will start consuming higher protein foods in preparation for molting as these foods offer higher energy.