I've never owned one so I can't say how good or bad the Reptirain is. I'm not sure if that's one of the ones that isn't really a mister but just sprays larger drops. I'd just make sure to read reviews on it and be sure it's worth the money.
It's alright, at least you're asking questions and accepting advice. Chameleons are definitely not cheap pets if you set them up right.
Draining is really something that has to be tailored to each cage and space, so I can't really advise a general solution. Many people use things like trays...
I have a Mistking, which is a bit up there in price, but the best you can get and will last years. There's also the Climist in that price range.
Not as good, but also not as expensive is the Monsoon, which I think some people have okay success with. There's a lot of people that say it craps...
I would try to remove them if you can, yeah. Then from now on you can just put them in a cup in the cage.
Telling if they're drinking is a bit harder. Usually you have to infer from the state of their urates, the white chalky bit that is usually passed with their poop. White means that the...
Mealworms aren't the best, I would stick to crickets. Does he eat out of a cup? That's the easiest way to keep track of them. If you search the forums for feeder cups, people have come up with some pretty creative designs.
Proper gutloading and supplements are really important. I feed my...
It can vary quite a lot, but it's a pretty important part of keeping your little guy healthy. You could go with something like a Reptisun bulb in a single bulb fixture sized for your cage, which might come out to maybe $50. I would also go with a stronger bulb, like a 10.0 over the 5.0. You'll...
Ah okay, I know the one you're talking about. Those aren't really good at all. I'd recommend switching to one of the tube fixtures and bulbs, the T8 or T5 size. More light/UVB might do a fair bit of help in stimulating his activity and appetite.
As to the free ranging: I wouldn't put them on the same free range. You could end up with one injuring the other, especially with such a size difference right now. When the male gets older you could end up with him bothering the female, trying to mate when she doesn't want to. Just too many risk...
Any plant you get, you can keep trimmed. I highly recommend pothos since it serves as water deliverer, humidity raiser, pathway system, and shelter very easily and they are usually cheap.
What kind of UVB bulb do you have? Is it the long tube or the compact/spiral kind?
Such a happy little guy! Veiled Chameleons really do love that sun. My project this weekend is an outdoor cage for my own young Veiled, though he's still too small to leave out 24/7.
They don't have the larger ones you're wanting, but they do sell ispods here: http://www.neherpetoculture.com/store
Looks like they sell them here though: http://shop.bugsincyberspace.com/Isopods_c15.htm
You can look at things like safety fencing or construction fencing and attach it inside. Like this stuff: http://www.amazon.com/Tenax-Guardian-Safety-Fence-100-Feet/dp/B00JNTYX3Y/ref=sr_1_1?s=lawn-garden&ie=UTF8&qid=1463676899&sr=1-1&keywords=construction+fence
Another thing you could try is getting a mantis ooth and sticking it in the cage. It can take a while for them to hatch so it isn't a quick fix, but it's certainly a natural way to cut down on the flies/gnats since the mantis nymphs will eat them, and then your chameleon will love catching the...
It's hard to tell from the photo, but there could also be a chance the smaller horns mean he's a juvenile. Again, someone with more Kinyongia experience will have to chime in.