Hello all, So I have eggs in an incubator in my classroom right now. I set 8 this past Wednesday and 5 more on Thursday (I know it's not ideal, but that's the situation). I should've counted the days more carefully and planned better because I just realized that day 18 is on a Sunday and what's worse is that it's the weekend I will be out of town, leaving on Thursday night and coming back Sunday night. Last year it was the same situation (oops), and my principal graciously went in over the weekend and took the eggs out of the turner and increased the humidity. This year, I was really hoping to candle the eggs on Day 18 in order to see the size of the air cell so I better knew how much water to add. I don't think I can ask that of my principal though. I was really hoping to increase my hatch rate this year by taking more of these things into consideration and making sure conditions were right. So I guess basically here's a list of questions: -What happens if eggs are taken out of the turner and put on lockdown on day 17? Day 19? -When candling to measure air cell, do you candle each egg or just one or two? If all of them, do you leave each one in the incubator (I have to go to a different room that's darker) and take out on at a time? Doesn't the incubator temperature lower because of all the opening? -Is there a way to predict how much humidity they will need on the day 14 air cell measuring since I won't be able to do it on day 18? -Is there anything I should do for the eggs that were set a day later? -When candling throughout the process, what do I do with eggs that aren't developing? Last year I just left all of the eggs in there (I didn't candle all of them) because I didn't want to make a mistake and pitch an egg that actually did have an alive and developing embryo. -Is there anything else I should be doing to increase my hatch rate this year? -My humidity often drops lower overnight and especially over the weekend. I have a digital hygrometer and it often says humidity is lower than it should be. I have a styrofoam hovabator with the tray in the bottom and I just fill trough 1 as per instructions for setting. Is this right? Should I put a sponge in there? This is why I want to measure the air cell growth this year.. Thanks!