Why does the crayfish hide after it molts? With an exoskeleton the crayfish is very vulnerable. its soft body is a target for predators. Without an exoskeleton the crayfish is an easy catch.

Why do crayfish hide after molting?

Hiding: When the crayfish is ready to moult, it will try to find a hiding spot. ... Firstly, the shell is very soft and vulnerable to predators, including other crayfish and fish. The crayfish needs to eat the old shell to replace the lost calcium and stengthen the weakened carapace.

Does the crayfish hide after it molts?

They are too soft and weak to protect themselves. It makes them easy prey for any predators. During post-molting stage crayfish need to hide and recuperate from the previous molting.