i just bought a 7 month old male veiled cham. he was a light green when i first bought him but now he is only dark green and a brownish gray. today is his 4th day in the house. he is in a home made wooden frame cage with mesh walls (36 inches tall, 24 inches wide). he has a lot of foliage to hide under, a drip mechanism i made myself, and i mist 3 times a day for a long amount of time. humidity is at 40% and daytime temp is 81-83F and at night it drops to about 70 F. He is quite skinny aswell. Any tips on how to buff him up a bit?