I'm having problems with my silkie chicks too,and these are my own birds that i let the hens hatch! I never had a problem before. They seem fine for a few days or more, than they just die, showing no signs of illness. I do have a few with pasty butt that I have to clean, but other than that - nothing. They seem to get lighter, even though I've been feeding them Exact formula on top of their Southern States chick starter ,which is very small crumbles. I've switched feed a few times, containers, they are on newspapper with a heat lamp, but the storage bin is long so they have room to get away from it. I give clean water every day,tried Terrimycin etc....but still they die. My seramas are fine and my peachicks.