I would give them some more time. Remember, it's best NOT to open the incubator after day 18 (as tempting as it might be!). Do you know what the humidity is?Ok, so 12 hours later and chick #1 hasn't made much progress. Here is an updated picture (be advised, I changed the exposure of the pic so the crack would be more visible)
Is that normal? The zip looks like it's going the wrong way...or is that even enough of a crack to be considered a zip?
Meanwhile egg #2 has a hole!
(Exposure changed on this pic as well)
That was a nice surprise to come home to.
I don't think I'll get much sleep tonight lol.