Hi there....just give him some time to settle in. He is not all that skinny, people are just getting used to seeing really fat dragons on alot of the sites and so they equate a huge bellly with good health, which is not it's not. He is a tad thin, but adult dragons , especially males approaching the breeding season, can take longer to adjust when they go to a new home and may not be interested in food. One thing you may want to do is get his basking spot up to about 100, but 97 is still pretty good. Keep offering food and especially keep him
hydrated. If he's not eating in about 10 days, you can take a fecal to see if he has parasites. Has his beard been black constantly, and can he see other dragons ? That would keep him all riled up and affect his appetite. Other than that, just give him some time, and be sure to ask the previous owner what foods he is used to. He should be fine.