Originally Posted by r3dc4t
From what I have learned about hermit crabs when i had them as a kid, they ate the exoskeleton. I assume it doesn't matter that the ones i had were not water hermit crabs.
Usually land ones do cause the need the calcium but i read some were.Can't remember were now that marine crabs absorb what they need before exiting and they absorb from the water.
Mine did not eat theirs and i removed them.I was afraid it could cause problems.