Arrived on tuesday yes? I'd be fairly supprised if it was eating already, IME it takes them a few days to a week to eat, and about a fortnight before they are bold enough to realy go for anything...
cheers rabbut he seems to be showing interest in the prawn but i think hes a bit wary of my other plec however the other plec is being re-homed in a couple of days so then the nugget will have the tank to itself