So I have been hatching chicks for a while now. I have a Brinsea mini advance incubator and I have never used a hydrometer. I have always gotten pretty good results with my incubator but the last time only two out of the seven eggs hatched. The others had stopped developing. I had never heard about dry incubation until today and I would like to know more about it. Do you have to put any water in the incubator? If so how much. Also have any of you ever had a bad hatch using Dry incubation? Thanks!