I just bought my first tortoise ever 2 days ago its a male greek I'm not sure how old he is but im guessing hes around two or three and looks to be healthy but i dont know much about tortoises yet. Anyways sense I bought him he hasnt eaten and I was wondering if this is normal for tortoises after being placed in a new habitat or if I should worry. Second of all I'm wondering what humidity his terrarium should be, because as of right now I have it at 40% and I am also wondering what substrate I should use.