They have great charts you can print up from the internet that you can hold up beside them to see. The main thing is if the END is right. You can adjust humidity over the timeline. If you can't seem to get the humidity high enough try a mist bottle ABOVE your eggs. Let it settle natural. If you have an egg carton and digatal bathroom scale you can check wieght as well. Once again charts available online.
Edited by TJordan - 1/27/16 at 9:43am