So, you have another cage that she lives in, and when it's time to feed her you put her in the small tank, correct? If so, it may not be a problem unless she gets territorial about her own space. Right now, she's been unsettled and stressed from the show, moving, etc. Once she settles down (how old is she?) she may resent being moved more and this might cause some problems. Another variation on this idea may work better once she is settled. Get a plastic box or critter keeper and put feeders and a bit of gutload in her regular cage. Place perches so she can climb to the rim to hunt. You can keep the feeders gutloaded, keep track of how much she is eating, and you won't have escapes. As for how much she eats, up until she's 6-8 months old she can eat pretty much all she wants. Then cut her back, as overfed females can start producing large clutches of infertile eggs which can put her at risk for egg binding.Most chams stop eating everything in sight about then anyway as their growth rate slows down. It won't hurt her to eat every other day. Chams in the wild would not get the numbers of relatively large fat feeders every day as they do in captivity. They eat many more small insects instead.