I live in canada, so it gets dry here, but I mist my guy for 15mins total every 24 hours, 10mins spread out through the day, and 5 mins spread out through the night. (mistking)
A bigger cage for a juvenile isn't a problem at all, after all in the wild they have the whole jungle to themselves! Just make sure you have a feeding station where the bugs won't escape, and adjust your branches for the uvb and heat basking accordingly. Good Luck! :)
Put him on a plant in the shower, point the water towards the wall and let it bounce of the wall onto him, leave him in there for 15mins. Just check on him every few minutes to make sure he's okay.
so happy to see that you were able to get him out that of horrible situation with the previous owner, have you done adequate research on panther chameleon husbandry? I wish you and john the best of luck!! :)