Yes, they have been on Corrid since Thursday and I have been feeding them some scrambled eggs in the evening for the past two days. This morning was the first morning without dead or weak chicks! The hens in the main coop all made it through the night so I'm really hoping the loss of the Orpington was just a fluke. I have put apple cider vinegar and vitamins in their water. The chicks in the grow our coop have been on Corrid since Thursday as well, and I'm not seeing any puffy birds in there anymore. My fingers are crossed that I am getting ahead of this thing finally...