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https://www.chameleonforums.com/threads/how-to-ask-for-help.66/
No, the laying bin is for them to lay eggs.
There are very good caresheets that will answer most of your questions.
Take a look at them, read them carefully -twice
Come back with questions.
It is great that you are preparing for your cham ahead of time, but there is a good amount of research to...
For a male get the 2x2x4
For a female, at least 18x18x36, but you can go with the 2x2x4. Consider if you are going to leave a laying bin permanently: that is going to take some of your cage space and I would go with the 2x2x4 for sure
Prettty detailed explanation on egg laying on this post by jannb. Take a look.
https://www.chameleonforums.com/blogs/entry/egg-laying-and-the-laying-bin.345/
Try dragon strand cages and their trays. Top notch
For lights, look at these
Tropic Blaze™ HO T5 24" Quad Fixture WITH Arcadia 6% Bulb & 2 6.5k Daylight Bulbs and Free Plant PRO Bulb
Mist 3 times a week?
If this is not a typo, that is not enough.
You need to do it at least 3 times per day, and double that if he is having trouble shedding.
The distribution might also be compatible from burns from a basking bulb too close to his perch.
Do you have a picture of his enclosure and a few more pictures of him?