I had the same thing for my first hatch this year...only got 6 out of 35. THis time I ran the humidity at 20-25% during incubation. Tossed only 2 for infertility and now have them on lockdown. I bumped the humidity to 85% for hatch and lowered the temp a little. This morning I had 2 now have 7 out and a bunch more pips! They seem to be hatching much easier this time. Tomorrow is day 21 at noon so they are running a day early. I felt so bad last time because of all the fully formed and dead ones! THis time I just wanted to set and leave them alone.
it seems to be working! Terri O (PS) GOOD LUCK TO ALL!
