I can't get the humidity past 72. The cage is a 20 gallon glass tank that is 2' high, 2' long, and about 1.5' wide. I've been using a fogger and misting by hand whenever i'm around. I've tried covering the screen top with a wet towel, and again with foil, but these just keep the humidity at a constant 70%. I'm thinking that maybe the substrate isn't getting hot enough to release moisture. The temp. in the day is between 82 and 89 using lamps. Do you guys think i need a heatpad to heat the substrate?


