How do I get my humidity down? It is up to 66 on what is day 1 for some of the eggs and day 3 for others. I have all the vents open. This is a still air hovabator. I figured out from the salt test that my humidity was reading 13 percent too low on the meter I had and now I have a lab hydrometer in there and sure enough the humidity has been about 55 %. What do you do?