Hey guys! This may be a dumb question but I have to ask. I have read and searched but no direct answer. My sulcata tortoise stays in a 40 gal closed top tank. I know the temp should stay between 75-80 degrees and the humidity 80% min. And a hot spot of about 110 degrees. For the most part mine stays within range except for my hide box which keeps 90% humidity and a temp of 88 degrees. Duh! My question is, when I open the top for feeding, soaking or what ever? The temp and humidity falls greatly and it takes a while to pick back up. Everything I have read states (constant). How is that possible? See! I told you it was a dumb question. lol