Good Day All, I have a quick question that somebody maybe able to answer, I have a R-Com 20 and have had the humidity go up 6 degrees all on its own and it is staying there - would this be caused after a chick has pierced the air sac and added additional humidity inside ? There has been no increase in humidity in the room that the incubator is in. The egg is on day 18 today and it is a Bantam Egg. Any thoughts would be great. Kind Regards Dr Rob.