Corn snakes are just like BPs when it comes to the whole estimated age thing. You never truly know unless yo have his precise birthday in front of you. And if I were to take a guess he is a ghost corn snake, but I only have an anery A corn snake, (used to have a butter motley years ago) so I am not an expert on corns at all. And as for bedding, he is on Aspen by the looks of it and I would keep him on it. Corn snakes do not need to have high humidity. Coconut husk is fine once it dries out but I personally find aspen to be the best.