I recently bought 8 baby chicks from a breeder out of town. They are in a brooder inside my house and have not been taken outside yet or been around my other chickens. Over the last few days three of the chicks died. They were eating and drinking but some of them seemed weak when I bought them. Long story about that ... I should have walked away without buying them since the coops were in such bad/filthy condition. Yesterday I noticed a tiny bit of blood in a pile of poop. Tonight I noticed two more spots of blood and I can't tell which chick it is from. I have not noticed any runny or abnormal poop other than the small amount of blood. Do you think the problem is cocci? Can I get them medicated chick starter and it help them or is it too late? Is there something else I can do to give them a fighting chance at surviving?