Hi, I have 3 chicks going on 6wks and I have noticed blood in their poop. It only looks like 1 is infected. I was just wondering if it is too late to just do the apple cider vinegar? If it isn't then what is the water to cider ratio. My chicks are organic or I would prefer not to medicate. What else can I do to help. I did order some corid just incase I have to use it. My chicks also have not been given medicated feed or been vaccinated. Any help would be appreciated... Thanks!