what was the breeder feeding him?

sometimes it takes a bit for a snake to fully adjust to the new surroundings. if you are feeding f/t - are you making sure the prey item is nice and warm when you offer it? if not, they often refuse to eat. also... how are you offering the prey? tongs? putting it on the substrate?

please give us as many details as possible... and then someone should be able to assist you

and - welcome to the forum!!!