He isnt going to eat for a while after the shock of moving him from another tank. Let him be for a couple days. After 5 or so days try feeding frozen again. This works with a lot of preds. There gut takes over and they get brave and eat. If it doesnt eat after a full week then give in and give him some live and try again.
After much reading and really looking at my lil guy, I decided he's way to thin. Doubt he's eaten in awhile. Each evening he's been attacking a small ghost shrimp that I've been soaking food in vitamins. Can you tell what's hanging out of his mouth?!?!
So far so good. Every couple days I catch him and put him in an acclimation container and give him a ghost shrimp loaded up and release him back after he's eaten.