The crab is pretty big, a large or an extra large. It was in an 6"x8" critter keeper with 1/8" of calcium sand and a capful of water. In spite of this, it seems to be in good shape and has recently molted.
It changed out of the painted shell about 5 minutes after I put it in. Right now, it's posturing and trying to knock the jumbos around. They've all knocked each other off the climbing structures. No chirping or noise of any kind other than the shells clanking when they fall. Hopefully they will all settle down soon.
I took a couple of snaps of the dude right before and after the shell change, but missed the change.
Seconds in the tank:
Meeting another crab:
Shell shopping (he looks tiny here):
Rinsing out the new shell:
