I picked up this nice Bali frag/small colony and I noticed a small crab. My camera sucks, so no chance for a pic of the crab, but it's sort of off white color and it looks like the tips of the claws are black, but just the tips, not the entire claw. I always see it moving around in the coral and it doesn't seem to bother it.
So I look in the tank after lights out with a flashlight and I see 2 crabs in the acro. This other 1 is definitely (I think...lol) an acro crab. It is pure white, and it's claws are super thin and flat and also white.
Is the black tipped a bad one? I see it during the day, where the white 1, unless it just blends in so well, I don't see during the day. Can a "good" crab and a "bad" crab live together so close? Should I wait and see?
Here's the coral. Both crabs are in there somewhere.