Yeah usually red is a good sign on the inside of an egg. You might want to mark the top of the egg down the center with a sharpie marker or something so that you know where top dead center is. Another thing is sometimes you can see an oval shaped cluster of red or pinkish inside a egg and this is also a good indication you have a fertile egg. They make a small little flashlight I think its from Maxlite or brinkman, about two inches long or so that fits on a key chain. These little bright lights make excellent egg candelers. Hope this helps and hope you have some hatchlings on the way.