You also should cover the sides and top with black paper to make him feel secure! I would change his hide and water bowl back to his old ones because that is what he is familiar with. Sometimes a change in the environment can have a snake go off feed! I would leave him alone for two weeks then offer food only once a week! If he doesn't eat then leave him alone for a week then try again! Keep repeating until he eats a couple of weeks in a row! Feed live as that is what he is used to. You need to try to feed as close as you can to how the previous owner did if you know that info! Good luck!!!