I tried candling tonigth Only 3 days I was not expectign to see anything just wanted to see how good I could see inside with my regular flashlight I couldnt see the air sac at all but my battiers are dying in my flashlight. I could see the egg yolk which looks like it was extended. I am wondering once I get batteris and its working right will I be able to see any development in my turkey eggs with a regular flashlight.