I candled my 7 in the brinsea mini advance. I only see one with veins and movement. Im not surprised they r eggs from mpc and the last time I only had one as well. I do have 5with my broody and wasn't going to candle hers but now I'm thinking maybe I should and if none of hers shows signs of life I could give her the one I have. I'll keep the others cause they r all dark eggs and maybe something will still happen. I also have 21 that I set the 14th from different breeders so maybe I'll have better luck with them.