I have a Hova Bator incubator set up in my classroom with 22 eggs. Yesterday was day 10. I realized that we may have put too much water at the last water check and the incubator was reading 85% humidity today as well as yesterday afternoon. We candled yesterday and my air cells are the same size as they were on day 7 when we candled. Is there anything I can do to lower the humidity? I pulled the red vent plug and still very little has changed. I do not take the incubator home over the weekend so I want to be sure that I can make any changes prior to this afternoon. Any suggestions. These eggs are from my personal flock if this is important to answering my question. Thank you!