I will start with background information first. I had a duck go broody, and purchased some hatching eggs that were shipped to me. I candled them several hours after they had arrived and noticed that they had loose air cells. The plan had been to place most of them under the broody, but I did not because of the loose air cells. I let them sit for another 24 hours without disturbing them before setting in the incubator. I kept them upright with no turning in the incubator for 48 hours, still had loose or jiggly air cells. At that point I started tipping the eggs at angles in the carton. The air cells are slowly growing, but I'm not sure if they are where they should be. I am running the incubator dry, but the hygrometers I have put it around 40% or higher. I also added some chicken eggs I collected after the ducks eggs had been in for a week. (I can't currently post pictures) I have candled every few days, to make double check progress on the eggs. Was worried they had been scrambled in the shipping. Out of the 12 eggs I received I believe one was infertile and had 4 that just had blood spots or streaks appear, no veining and nothing that looked like an embryo. I have removed those, along with the chicken eggs that fell into those categories. Someone in the Incubation & Hatching eggs forum suggested misting the duck eggs. That it would cause an initial spike in the humidity but that by the end of the day it would be lower than where it started. This is my first attempt at incubating. Lesson learned, I will weigh eggs before I set them (at least until I get the hang of this or when dealing with shipped eggs). Also one egg did arrive with a hairline crack, we put some wax over the crack and originally kept it at the opposite side of the incubator. It however has been one of the ones developing the best so far. Thanks for any help.