Okay, now I feel like I'm just being paranoid, but here goes...when I first started looking into the forum, I had totally the wrong set up for my pacman. (I think Wacca is a female, so until I learn otherwise, I'll call her a "she".) I had her in a 10 gallon tank with river rocks spread along the bottom, 3 large rocks, a plastic plant, and about 1/2" of water in the bottom of the tank. When I learned more, I bought coconut fiber substrate (kept moist), a water bath, liner for 3 walls of the enclosure, a red light, calcium w/vit D, and a multivitamin - and I ordered a thermometer and hygrometer as well as a heat mat. As suggested, I put plastic wrap over about 2/3 of the lid to hold in the heat/humidity. Before the new enclosure, Wacca would hunker down amongst the river rocks, (I later learned that she was trying to "hide"), and she ate really well; in fact, I was worried that I might be overfeeding her until I called the pet shop owner and he told me that as long as she was hungry, feed her. I got everything in place with the new set up (minus the thermometer/hygrometer/heat mat) 2 days ago, and now all she wants to do is bury herself - completely - in the substrate. I can barely get her to eat. Should I be worried, or is she just reacting to the stress of having her whole environment changed - or to the euphoria of finally having substrate to bury herself in? Please help. I don't want her to die. Thank you.