I am having a heck of a time with my incubating this year. Last year I hatched a bunch of eggs all willy nilly. This year I have had a terrible hatch rate and need some advice. First of all I just put eggs in when I find them in the coop or at least for my guineas that's the way it is. But I put a bunch of chicken eggs in at the same time and plenty developed and died. Humidity is 60ish (give or take some) and the one air plug is out (that was my mistake with hatching the first round). The temp is spot on. What on earth am I doing wrong. I candle often after like 10 days and I don't typically do a lock down because I put them in at all different times so that doesn't work. Should I only put them all in at the same time and be sure to do a lock down? I have had a few hatch but just not what I feel it should be. Any ideas welcome.