Alright guys, I'm running into a small problem with the humidity, I have 68 total holes in each tub. 16 each on the front and back. And 18 each on the sides (None on the lid). I'm using repti bark as a substrate about 1/2 an inch. But the humidity is out of control! Like 90%. How do you guys keep humidity in check? I need to bring it down like 30% The tubs are sitting on 4 inch THG heat tape that is set to 89 degrees. Any help is appreciated!