This is our first time ever

just put our eggs in the bator today. Fingers crossed couple questions though we have a still air incubator humidity is about 27 percent temp is staying about 100.0 will this work or should I adjust something. Tried to candle the eggs but think our flashlights are not bright enough can't see the air sacks. Is that something I should be able to see right away? We have a few incubators and will hopefully be getting some Rhodebar eggs in the next couple days and will be putting them in a different incubator. the first eggs are a barnyard mix from a local farmer. One seemed to have a slight crack but it was the only olive egg of the bunch so we put clear nail polish on it. Fingers are crossed we are able to hatch some out.