What is this!?

[Joe Reefer]

Does it have red eyes?

[michika]

Are its front pinches black, or very dark brown, coming to a distinct point?
What color are the eyes?

From your picture I say gorilla, and I guess its still pretty small. I have a few very similar photos of a crab in my tank whom I cannot catch.

[Murminator]

I'd "rock" him

[Beverly]

Originally Posted by Murminator

I'd "rock" him

Yeah, after catching it, I'd "rock" it too

Or, I'd put it in some tankwater then into the freezer