I thought that humidy suposed to be at 58% until day 21 and rais

[Berynn]

When chicken eggs first go into the bator is the humidity suposed to be at 58% and temp always at 99.5 on forced air bator until day 21 and then raise to 65% or do I waite for a peep to raise.
Or am I completely wrong

 

[Tuffoldhen]

Your humidity should never be above 40 to 45% the first 18 days...chicks drown in eggs with high humidity...last 3 days when you stop turning...raise your humidity between 60 to 70%... most on here find that 65% is best...