Do Crabs Make Noise While Molting?

[BobbiIngrid]

I've had two crabs down since the early-mid November. Both are small-medium. I've been hearing some noises and I was wondering if they might be finished molting. It's also worrying me though My substrate is sandcastle consistency, but there was an unexpected need to move the tank. What are the "symptoms" of tunnel collapse?

[wodesorel]

There are no signs when there's a tunnel collapse.

Crabs will chirp while underground, and you can often hear a scraping sound as they tunnel around before and after molting. It can sometimes take a week or more of tunneling before they're ready to come to the surface.

[Laurie LeAnn]

Sometimes the dig and scratch for a week driving you nuts while you try and watch t.v.....just saying.....