Already moved it to the tank of shame but curious about what it could be. I have two gorilla crabs in the “TOS” too and they look pretty different than this guy (I don’t have a sump so I set up a small tank). Rock was from TBS. It is hairy but barely, and has dark claws with white tips. Also slightly more bold than the gorillas, I would see it cautiously coming out at feeding time whereas the gorillas wouldn’t budge until after dark.

