On the thing i have just read they said liquid calcium is okay go getWHAT YOU WILL NEED:
(1) small bottle of pedialyte ( unflavored )
(1) 3 cc syringe (these can be purchased without the needle at farm supply stores and veterinary offices).
(1) small dixie cup ( kind used for mouthwash) or...
Welcome to the forums I seen on the forum that a lot of people use 24x24x36 but what i have read is bigger is all ways better unless there babies then it can be a little bit small. i hope you find the perfect Chameleon for you and this is a great place to learn about them!
I would take him to a vet a couple of days ago i was reading post and someone Chameleon look just like that and it turned out to be a tumor im not say that what it is but i would get it checked out asap