You can help them only if there are problems, like the eggs drying out and the bird gets stuck inside then you can help them. Remember only if you need to, I do this when my eggs have problems hatching, they are fine afterwards.
40 eggs of mixed breeds. My rooster is a black sex link and my hens are deleware, orphington, jersy giant and a black sex link that a fox took two weeks ago.
They stand a better chance of not drying out if you don't open the incubator. I know you'll have to open it sooner or later to get the early hatchers out, and if you can do it ONCE a day and quickly, there should be no harm done. They need to get themselves out. The ones who can't will be weak and may not survive anyway.
yes, they'll be fine..They don't need any food or water until they are 24 hours old and all fluffed ( don't take them out of the incubator until they are all fluffed)