Not to say you are out of the woods, but mine looked like that for about 1/2 the time I had it for the first few weeks. I've had mine about 3 months now and it seems to be doing fine. It eats large silverside every 2-3 days and looks solid.
I'd give it a day to get at least a bit used to the new spot and try and feed it tomorrow. If it doesn't eat, try again every other day until you get it to eat. Also, mix up what you are feeding it, try silversides, krill, shrimp, squid, etc. Good luck!