Wait... Let me guess this straight.... You're worried because you haven't seen the Dubias eat? Lol... They are roaches, very hardy ones at that. Just put food in and they will eat eventually. :D
Feeding only worms is not going to be enough variety for a chameleon. If you are absolutely against feeding crunchy and lively food items, I suggest that you consider a different species of reptile, such as an herbivore.
I agree with SocialNumb that the twitching is from him trying to get a grip with his tail. That branch that you have there, is very thick, too thick for his little feet to properly grasp. This could be why he is choosing to climb via the screen. From my experience, it is also a sign of...
Thought I'd share a horrifying cricket crisis I had today. I was cleaning out one of my crickets tubs, and wanting to thoroughly scrub and sanitize it, I moved all of the crickets into a smaller container while I washed the large one. Needless to say, clumsy me knocked the container over...
Do you mean that you could not feed live crickets or live anything? There really is no way around feeding live insects. There are other options besides crickets, like roaches, a variety of worms, flies, etc.
Unfortunately, probably not. Those things are extremely slippery and quite thick, as they are intended for other reptiles. The only way I could see that they could be even slightly redeemable is if they were wrapped in some kind of material or vines. A much easier and cheaper method is to...
Yep. It reduces the risk of drowning and the hastle of water crystals, as long as they are provided with the fruits and vegetables regularly and the stuff is fresh, they seem to be fine without any additional water. Also, you might want to consider adding more of a variety to your chamleon's...
In my experience, you don't need to provide them with any water, as long as you feed them plenty of fresh fruits and vegetables. Potatoes are not the best thing to feed them, despite the fact that that is usually what they are fed before you get them.