Day 21 help

[lilmidtown]

What should it look like when canceling this day should their be no liquid in the egg? I also put one egg in each day should I wait and put them in together I get one a day I have 1 rooster and 1 hen I made the incubator myself any tips or suggestions are welcomed

 

[BusyStFarmer]

Read this:
https://www.backyardchickens.com/a/hatching-eggs-101

Its long but worth it when you have a successful hatch.

PS. You shouldn't candle after day 18