BLUE TONGUE SKINKS

Hi all,
I was just wondering how long you wait to let baby skinks settle in when they get home. Is it about a week or less? Also, will a little humidity hurt a skink? Or does it need to be dry constantly? I'm asking because i purchased a substrate that I know will create a bit of humidity for about 2 or 3 days. And will a full-size tank freak a juvenile out?
Thanks for your help on my newbie questions!

Usually people do for a week. A little humidity is fine. A full size tank is fine. :]

Thanks, i just like to double-check. I'd rather ask a stupid question than regret not asking it.

humidity generally around 25-45% is good