HCA: Hermit Crab Association

Hey, My crab Kahuna just finished molting ( I can tell because of all the carapace pieces in his tank) but he hasn't moved into a new shell. His current shell is camouflage with the rest of the tank while the new ones are not, should I find him another, larger shell like the one he is currently in?
-Thanx!

I would try to find one that is the same kind, because maybe its curviture fits Kahuna really well.

Caroline

Crabs don't always change shells after molting, some are in slightly too big shells before they molt and others are just stubborn. I would still try to find a shell like the one hes in now though.