So I just bought the 4250 model Farm Innovator Incubator with the automatic egg turner at Tractor Supply because I am wanting to hatch eggs for an agricultural project. I have had chickens all my life, I have just never hatched my own. I ordered some hatching eggs offline and I am also going to use some from my own coop. What I wanted to know was: ~What temperature is ideal for incubation? ~What humidity(s) are ideal? ~How long can eggs sit before they are considered infertile? ~Should eggs be cleaned before incubation? ~Does the incubator need to be cleaned if it is brand new? ~Do eggs need to sit before incubation? (I have heard that ordered eggs need to 'settle' before you place them in the incubator..) I have tried to research all this information, but every website seems to say something different.