It's dark after the 12 hours if light are over...right??
Egg laying can be so easy if all goes the way it "should" but they/we can make it so difficult. It's hard to explain it all to people too. When you've seen it many times it's easier to know when there's something wrong and it's easier to figure out what's wrong...or at least what you need to do. When people who are new to it try to explain it to us its not easy to know what to tell them every time because we can't see the females subtle behaviors, etc to be sure what to do...and the newbies miss the subtle cues...we can just give our best "guess". Sometimes what's going on is straight forward and others are very hard to be sure. I wish we could do better with it all....but all we can do is the best we can.