Ok, I thought in an old post you said Reptaid, Ha now I realize why you were trying to figure out how to mix it? I dont shop Petsmart or places like that so I never knew there was such a thing as Repti-aid. Trash that. Get some real Reptaid its a liquid, in a small bottle with an Eyedropper top and comes with a small syringe, for injecting into feeders. The site sponsor
Chameleons Northwest here will sell you a bottle, get the smaller one. and follow instructions. Be discrete and do everything at an easy slow pace till these guys settle in. and If they dont eat when offerd, the Reptaid injected, try again later when hungry. I feed lightly everyday when doing this so they usually do eat when I offer the stuff.
When I mist I never shoot the animals.

I'm sorry this may upset some of the other owners on this site. But I live in 20% anuall humidity, I added a humidifyer to my Jacksons Room and Keep It at 30 to 35%, and THEY live real well! Ive said this before and I'll say it again, Its not about getting water
onto the Chameleons, Its about getting water
INTO the Chams. So yes mist the cage, thats fine,

and they will drink/lick the water off the plants,
But please dont shoot the Cham heavily with water, especially in the eyes. By accident he probubly got abit of water in that eye and was just rubbing it out. The colored statement is not for you but others that read your thread. Drippers work well for mine also!
These Females dont lay eggs, so if not bred they dont go through any sort of birth. and may discharge or absorb any thing involved with the girly prosses. If you do breed the 2, live young come out in clear sacks that they immediately get out of and start running around.
Temperature, If its 65 to 75 in your house, they will be fine. so keep them where they are. And enjoy them, I doubt you let it get any hotter than 80 in there as you would not be comfortable. Average room temps work just fine.