My hermit crab sits in his shell in the same spot all day. hes alive, but does anyone know whats happening?

Answers:
maybe he just feels comfortable staying in the spot all th time. I also have 2 hermit crabs. Most of the time they also just stay in one spot but during the night i think they move around more. Hope that helps ^^

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I had hermit carbs. They like sponges and light. They also like they're shells. Try to get them out of the shells. Toys sometimes help!!