She's still a baby so she's staying in 12x12x24in exoterra with a non-poisonous potted plant, vines, waterfall, and a 100 watt halogen UVA/UVB basking light. She also gets misted twice daily for about 2 minutes each time (which she hates).
I can tell from your enclosure detail that you bought your cham at Petsmart or Petco.
Don't feel bad, i did too (my first cham)..
They suggest a lot of stuffs that isn't needed and can actually harm your cham.
1. Get rid of the waterfall. Cham loves to poop in it and can become a breeding ground for bacteria. Which can kill your cham real fast.
2. I bet you also have a coconut bark substrate at the bottom of the aquarium. Get rid of it too. Crickets can burrow inside the subtrate.
Plus, it is cleaner without.
3. You need to mist the enclosure twice or MORE (I mist it at least 3 times).
for 5 minutes at least... 2 minutes is not enough to induce drinking behavior for your cham.
4. I will leave this entirely up to you as i have seen some people here uses glass aquarium for their cham and manage to get them thrive.
But Screen cage is ALWAYS, in my opinion, better for your veiled. I buy the size 24X12X24
It might harder to keep the humidity; but with really bushy live plants, keeping the humidity is not too hard.
The problem with glass cage, the air get stale pretty quick and it can cause respiration Infection (URI). Also, some chameleon get stressed and can get sick by seeing its own reflection thinking that there is another chameleon in the cage.
5. keep the basking light (UVA) that you buy and purchase reptisun 5.0 for the UVB.
6. What species of plant do you put inside? Best plants for me is Ficus Benjamina and golden Pothos (turn out my cham never touch the pothos at all. But i decided to keep it anyway cause it make the enclosure prettier)
7. for food. gutload them and dust them too. you need herptivite, repcal with d3 and without d3 (i use miner-all for the one without d3)
i follow kammer's routine (herptivite MTH, Repcal TF, Miner all WSat, no dusting on sunday)
Return the exoterra, the waterfall, and substrate (if you can) to the store.