How important is humidity

[journey's end]

for the first 18 days? I know that it's important for the last 3 but is it really important for the first 18?

 

[SpunkyTheMonkey]

yeah, if it's too high for 1-18 they can drown when they pip...if it's too low 1-18 they lose too much fluid, the air cell is too big and it can cause developmental probs...i cant remember exactly what ottomh