New to Snakes; worried about new guy?

[bcr229]

Make sure all your husbandry is correct temps humidity etc.

This. What are the temperatures on the warm and cool side? What are you using for heat and how is that heat regulated? What kind of thermometer are you using to measure the temperatures - some are wildly inaccurate. What is his humidity?

Also most breeders keep their snakes in tubs/racks due to space and easy-of-care considerations, if you take an adult that has lived in a tub since pipping and put it into a tank environment it's not going to be happy.