I have a rack with 6 balls in it. For some reason the tubs get moist and wet. They are probably too humid. How to I alleviate that. I have the herpstat II set at 90 during the day and 85 at night. It is belly heat at the back of the tubs. I have used less water. I have it set at those temps to make the overall tub temp higher. The room they are in is a little cooler but when winter comes it will be hot in here. Any suggestions? I am afraid of resp infection with too much moisture.