First of all, your enclosure needs a
lot more foliage according to the one in your profile picture.
To make sure he gets his crickets, you can either put them in a feeder cup, like the ones with mesh and cardboard, or you can try a regular cup (but they will probably jump out). Or, if you are willing to just free-range them in his cage, you must make sure to watch him eat them because those little buggers can escape practically anything! So that method is not a foolproof way to get him to eat. Also try hand-feeding, which will let you be
sure that those crickets are being eaten, and it will help you gain the trust of your chameleon.
I wouldn't keep him in with the silicon just in case, because you would never want to risk the safety and health of your cham.
The humidity should be kept moderately high, but not so high that you are begging for a respiratory infection. For example, 85-90% might be a little too high. 30-40% might be a little too low. I am making this broad because each chameleon is different, but in the region where Jackson's come from, it rains quite a lot. Each chameleon can adapt, but it is best to replicate their natural environment as much as you can. do you have any live plants or an automatic mister of any sort? These will help you maintain a healthy humidity level.
Also, welcome to the forums! I wish you and you cham luck!
