I am on Day 6 of a hatch and everything seems to be going smoothly except for one thing.... the gosh dang humidity!!! I have the tractor supply incubator with egg turner,small fan thingamadoda and plastic covering. The humidity has been uncontrollable. I add a sponge when it is low, than it jumps to 62! I take some of the liquid out.... it goes all the way down to 31. The lowest it has been has been 28 and highest 72. The chicks seem to be progressing OK. Any tips???