I have an incubator that kept the eggs in until day 18 then I moved them into a hatchery (because I set eggs a week apart). In order to keep my humidity around the 65% range I had to close off the vents in my hatchery. The temp is averaging 99*-100* so I think I'm okay to hatch the eggs. However, being that this is my first batch, what do I do when they hatch? I have read that they need fresh air, so do I open the vent holes which will lower the humidity, or do I just leave it alone for the first few hours? Can I take the new chicks out right away and put them in a brooder? Sorry for all the questions, I just want to make sure that I don't do something that will harm the chicks that could have been prevented. Thanks in advance!