Are those the black concrete mixing tubs from yesteryear? Those are still the best baseplate for any screen cage, IMHO.
My former Parsonii enclosures used the 4'x3' mixer with a screen top. Those things are so much better than the flat bottom.
How do you KNOW that chameleons don't consume dirt or sand in the wild?
Every type of chameleon I've kept has at one point has eaten sand or dirt. It may be a nutritional deficiency, but do you know ? After all these years it doesn't seem abnormal at all to me.
If I use a potted plant that...
I don't even provide a bin for egg laying. A keeper with any experience will know when a female is ready to lay. Typically they begin to wander on the bottom of the habitat. Once this happens I always just place the gravid female in a bucket with moist sand and a predug hole. If they're ready to...
The constant parroting about impaction amazes me. Not once in twenty years have I ever seen this happen. Your chances of a chameleon choking on a oversized cricket are probably much greater.
Fishing line is used to tie the orchids to the sections of cork until they can establish themselves.
I suspect a veiled will attempt to eat orchid blossoms.