Hi im on day 18 today. so today is the last day i get to touch my eggs before my awaiting arrival. today i leave them is that right. temp normal 38' humidity 80%. Is it no opening lid of incubator at all. what if the water level goes and % goes low can i top up water. Im on my first hatch so im still learning. please help advice on day 18 rules please. i can't wait to see my babies real soon.