My humidity drops a lot and it is very hard to keep it in the 60 range. I have two large water bowls on either side and a small bowl near the front of my BP's enclosure. I also have wash clothes I get damp often and put those on the top with another towel covering it. I also mist her tank. Her humidity frequently takes a nose dive more often than I would like,but I try my best to keep it in the 50-60 range.