If he doesn't have hides, then he's most likely terrified because he can't get away from the threats he perceives. I wouldn't expect him to even think about eating until you have had his hides in there for him for a week. It can be as simple/cheap as a Dollar Store bowl, flipped over with an entrance cut out. Just remember to make sure it has a low ceiling and is snug for him - the fancy log hides are no good (except for decor for the owners), and something too big won't feel like a hiding place.