if humidity is a problem i wrap a sower curtin around 3 0f the sides of the cage during the day and that keeps it nice and humid i also use a modofied crane humidifyer to bump it up some more.
you may want to move them from tha glass tank to a screen cage and my jackson love the water and they breed is saposto like a higer humitity than most chams i keep mine at about 75ish
For some reason while he is only under his basking lamp he has his mouth open and he is not weazing or coughing at all so I'm confused plus I think it is a 50 watt halogen bulb
If you live around Deerfield vocalist area there is a place called underground reptiles that sells wild caught Jackson's and others and I got mine there and he is already tame after like 3 weeks look the up at undergroundreptiles.com