HCA: Hermit Crab Association

I've read up about PPS and how to deal with it out of fear of my killing my crabs, but three out of the four new crabs I have are regularly moving around and eating even in the daytime. Should I still be so fearful of PPS, or would such activity not be present in a truly stressed crab? The fourth crab has buried himself somewhere in the tank, so I'll leave him and buy some new shells in case he's molting. Any thoughts?

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The risk of PPS doesn’t usually go down until after their first molt. Once they get past that stage they’re usually home free.


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