I have been trying to hatch duck eggs, but have had no luck. i hatched a batch of Crested Ducks and only got 6 ducks. later i read that "afro" ducks are basically gmo ducks, so i thought that was the reason they didnt hatch. Last month i set a another batch of egges and when they hatched i still only got 6 ducks. i have set another batch so hopefully they come out good. when i ended the hatch last month i broke open some of the eggs and found that the ducklings were fully formed but they didnt hatch. I have a circulating incubator with an auto egg turner and i keep it at 99.5-100 degrees Fahrenheit during the regular incubation days. The humidity stays at 50-55%. During lock down i keep the temp the same but increase the humidity to 80%. These are the temps that the duck health website (http://www.duckhealth.com/hatcduck.html) gave me. they didnt work. What am i doing wrong or is duck hatching a cause dependent on luck.