Tomorrow is day 21, and 5 have already broken their shell. I feel completely unprepared!! They went on lockdown on Sunday, I thought that they wouldn't even start until tomorrow. How long can the hatched ones stay in there until the rest of the eggs have a chance to catch up? Is it 18-20 hours after they pop through the shell or after they are out of the shell completely? I have a very tiny (3d printed) waterer in there to add water for them to drink if they have to stay in longer to wait for the others, but I don't know how long that would be.