I set my 41 eggs on the 12th in the afternoon. Silkies, Bantam Cochins, French Marans, D'Anvers, and a Silkie Mutt Surprise. I'm not candling at all this time. Just letting them go until day 18. For those who are using Hovabators with fans, what humidity are you using for days 1-18? How about day 19-21?