Mine are due on the 17th. Tomorrow is day 18. I think I already removed any clear eggs and all but a few of th ones left had swimmers. A couple were doubtful,but i kept them,just in case. I think I am going to wait until day 19 to raise the humidiy because these are my marans eggs and I have head that they don't loses moisture s quickly as other eggs. I am going to keep the humidity betwwen 55 and 60,so wish me luck. I have been having rotten hatches this year,so what do i have to loses b changing it a little?