Whilst feeding the fish I just spotted a funny purple lump in a hole in one of the pieces of live rock.
As I moved away from the tank I noticed a movement, after watching it for almost half an hour it's a crab! He's not come out in the open at all but stays in the hole right between 2 rocks so I can't get a picture due to water distortion at the angle he is
Hes purple in colour all over, red eyes and black tipped claws.
I know he's predatory due to the claws, but does anyone know what he is?
Annoyingly he's at the bottom of the scape so going to take some rearranging to get the little bastard out.