how long after duckling pips to hatch

[jj ranch]

i have one that i know of that pipped 24 hrs ago. humidity at first was only 70 then 75 now 80. is he stuck? he has made the crack bigger but you cant see in it, its just the white membrane. might be dried up not sure. others have piped in the middle of night and 2 awhile ago. how long do you let it go on without help. i do not want to mess whole hatch up for one. help!!! is it true they could take 2 days?

 

[raindrop]

Yes, they can go two days. Good luck!