Moxie seems to be spending more time in her water dish the last couple days. The book says they will spend "excessive time" there if they have mites or other skin irritation or if they get too hot. I don't see any black specks or skin problems and the warm side of the tank is 85F. Is it the humidity? I haven't bought a humidity guage, but our house humidity is about 45% right now and I give the tank a water spray once a day. She maybe spends 30 minutes in the dish a day, 15 in the morning and 15 at night - is that "excessive" or normal?