Hi I am new to keeping chickens I have had good luck up to 3 days ago when they started dieing for no aparent reason I lost 1 first day then 5 the next day 2 the next day and then none yesteday 2 today I thought it might be coccitiosios so started dossing corid in the water on Friday. I had noticed a berry little amount of blood in poop before corid haven't seen any since the chickens are acting week lathargic just kinda out of it no balance I don't know what to,do at this point they are about 3 months old any help and advice thanks in advance