I'd be careful how much protein you are giving him right now. They start to pyramide a lot of if you feed to much protein. Make sure you have a cuttle bone in the cage for him and a strong UVB light. At this stage I fed mine protein food once a week and fed more veggies as mine was developing a little pyramiding. It went away after awhile, luckily. You can lengthen the period where he gets protein if you notice he is pyramiding and feed him salad, comprises of a lot of plant protein instead, in between.