How to Tell If a Hermit Crab Is Dead. Part of the series: Hermit Crab Care. To tell if a pet hermit crab is dead, move a hermit crab around their shell to see if it's limp, or smell the shell for any pungent odors. Hear about the reasons why a hermit crab may not be moving in this free video from a exotic pet specialist on hermit crab care.
