Hermit CRABS

On Monday I got three hermit crabs. I named them Climber (his nickname is Smooth), Stubborn (his nickname is Ruff) and Mini (and also scales, his shell feels like bumpy scales like a crocodile).
I've got a little house for them and a sponge starfish and some shells. I got one shell for free because it's got holes in it.
We gave the house new sand and I stil can't figure out why Climber likes to climb the bars.
Stubborn is really stubborn of coming out of his shell.

This is their new home.


The one up the top is Climber. The one on the left is Stubborn. The one on the right is Mini.