My male panthers like privacy so I draped it in front of their cage, on the inside from a few wires I strung across from side to side, I water them quite a bit also, the spanish moss loves water, and yes it will help increase humidity, I find that chams will chomp on vegetation and dirt if they don't get enough water, at least that is my conclosion, so if yohr chams get enough water, I would say spanish moss would help you, I got it from etsy store (wetnwild gardens) it is in new york! I use all live plants, in my vivs, I read that chams communicate with plants on a vibration level.... not sure if that is true, but interesting anyways