I won 12 eggs off of Ebay - She sent 18. Of these 8 showed growth when I candled at 7 days. I was fine with this since some of the others "problems" could be fertility or damage by the Post Office ( a couple of the "air holes' looked loose - they moved when I moved th egg ). I lost 1 somewhere between day 7 & day 10. So I expected 7 to hatch. Only 1 did! I had a temperature issue over night on day 21 & the others died. ( I had tried to wake up a few times to check & adjust the temp, but I was not feeling well & my 1yr old actually slept all night!!! ) Anyway, 1 other had pipped, so that was my clue that the temp actually had stayed up too long! I opened ALL 18 of them today ( plus 2 guinea eggs that my dh's uncle sent to try ) and the ones I didn't think were viable weren't - so I felt good about my candling ( a positive I guess ). The one I thought I lost between day 7 & 10, looked like it was about that far along when I opened it. The other 6 ( of the original 8 ) had fully developed chicks. 1 of course had pipped through & died, and of the other 5, 4 had broken through the membrane. I am so sad that my stupidness at trying to get the temp up ( it had fallen to 98.something) killed them.. They probably would have been better off at the cooler temperature! I am trying to learn how to incubate eggs so that I can SUCCESSFULLY do this for my kids classrooms. I have the teachers hova-bator that I've been working with. So...I believe I will start saving my $$$ and get the one on McMurray that has the electronic thermostat....has anyone gotten this & had any luck with it? Thanks for "listening" to my rambling!