I wouldn't worry if it doesn't eat they won't eat until they are settled in so long as your conditions are right he will be fine. plenty fresh water & good bio filters is the main thing. My RTG took a month before he would eat, my juvenile starting eating within 10 mins of him been in his new tank. try feed him on a night half hour after the lights go out that may help. Some wont eat any pellets , large meal worms are good