I received a baby veiled chameleon yesterday (4-6 weeks old). How long will it take for the baby to get settled into it's cage? It slept on the screen last night, and as it walks around it's habitat, it's color is a dark green, almost black color. From what I know, doesn't this mean the chameleon is stressed and nervous? Is there a way to make it more relaxed? Should I cover the cage with a sheet (leaving at least 2 sides open for ventilation)? Please let me know. I have fruit flies to feed it, and I'm getting small crickets and phoenix and wax worms as well. Thanks for your help.