Thanks for the reply. I will post this on the other forum, too. I'm sure everyone will eat me alive. The water monitor was actually my husband's buy, I am more used to my bearded dragon, Iguana, and red-tail boa. He wanted this for himself, but I'm thinking this is a bit more difficult than he anticipated. The guy we have talked to at the pet store owns two savannahs and a nile, but I should have figured he didn't really know much when he said to give my beardie spinach and carrots. Anyway, the cage is actually a shower room that we turned into a "cage". So 4'x5'. Built a door so he can't escape. I went in there myself and shut the door to make sure it was well ventilated. The monitor is only about 14" long including tail. My cool end is 90. Basking area is only 130. He has two hiding places, one on each end. His water is an extra large cat litter pan. He gets in it at least once a day. The substrate is that forest floor dirt, don't remember the brand name. I guess I thought since I am familar with other reptiles this wouldn't be such a stretch. I did a lot of internet reading before hand, too. It's hard to know who really knows from who just thinks they know how to take care of monitors correctly.