duck egg incubation

Is to much air circulation a bad thing when incubating eggs? The reason I asked is because I added an extra fan to my incubator thinking it was a good thing. Last hatching I hatched 14 out of 17 eggs with the factory fan only. This time I lost every egg I had and I had added a extra fan to...

Hello byc family! :frow I have my hands on an incubator and I have caught the hatching bug that's been going around here for some time. :) I have had ducklings hatched by a broody but I am brand new to incubation. I am fairly confident in my knowledge of candleing and what things should look...