Hi all! I am a first time duck egg hatcher. I have a genesis hova bator. Today is day 19 and I think I have a problem. We started off with 12 eggs. Only 3 started to grow. The others are still in the incubator but they are clear. My problem now is that I candled them lady night and I think one may have died. It is not moving and the veins looked sort of blurry. There were a few dark spots on the inside of the egg that were not there before. Help!! I don't know what to do. Is it dead?