Hi all, I had my first big batch of buff orpingtons today, so far about 90 have hatched okay. Still have about another 20 or so to go. I have a question if anyone can answer, how can I keep the inner lining of the egg shell from getting hard? I lost about eight of them due to the lining getting hard and suffocating them. I kept the humidity around 67% while they were hatching but that didn't seem to work. Any ideas out there? I'm hoping to get into the business of this little hobby of mine, and it was easy on a small scale (7-10), but it's different when it's a 100 at a time.