. Your humidity is based on two things 1 the type of incubator being used still air or forced air 2 the altitude in your given geographic area, humidity must be adjusted for elevation to have the needed results .. Humidity during incubation should be used only as a tool to control the growth of the air cell in the egg there is no number that can be used as a base line the air cell is the only reason humidity is a factor during incubation at first candle you will adjust it accordingly to acquire the needed result for the air cell at the given time of Inspection to large a air cell to dry the incubator to small the air cell to wet the incubator . Simple,, let the egg tell you what humidity you need to use not the instructions in the box,, you need to look up Sally sunshines hatching 101 here on byc it is comprehensive and will explain with graphics the effect humidity plays during incubation,, that being said welcome to the addictive sometimes disappointing but always fullfiling world of hatching ,,,,,,, did that come out right ? Lol
u made it simple............
