Is there any "secret" to it? I have only incubated guinea eggs successfully ONCE. I am trying again, have 31 eggs. The incubator is completely disinfected. The thermometer/hygrometer has been calibrated. I have been incubating them at 99 degrees and 60 percent humidity. I REALLY want some keets out of this bunch so keeping my fingers crossed. On a funnier note, I talked to my aunt a couple nights ago. The guinea keets I hatched out from chickenlittle32 are doing great and quite the characters around the farm! They eat with the ducks and ride on the goats backs and sleep with the goats in the barn! So its going to be quite difficult for any predators. She says they are the best birds.