I have several groups of chicks all different ages. They are all eating medicated chick starter. Everyone seems very healthy. However, every once in a while I'll see some blood in some poop, consistency of tomato paste. Is this really cause for alarm? Or do chicks routinely pass a little blood like the adults do? I've seen all those pictures of poop (in the link) and some have blood but are considered normal for adult chickens. I don't want to freak out everytime i see a little blood and start giving cocci meds, over medicating is harmful too. What amount and frequency of blood is normal in chicks, anywhere from about 2 weeks to 15 weeks?