Ok, sorry for hitting hard on similar posts but I have read many threads and I am leaning towards Cocci. All of this could be related. But can you answer some questions please: What is duration of sickness? 1 of my chicks seems ill,see thread https://www.backyardchickens.com/forum/viewtopic.php?pid=913714#p913714 isn't really thriving and this has been going on for 2 weeks( since I got her really) She is only 2 weeks or so old. Does Cocci poo always have blood in it? After seperating her this morning I saw her fresh poo and it had water and around it solid normal poop. Last night I found blood on top of the watering jar in the brooder. I couldn't figure out what it was...but now I am leaning towards waterey translucent bloody poo since no one has any injuries. It didn't seem like poop was mixed in the blood but?? I only have 1 chick that doesn't seem well-she is always laying down but I knows she could have flew to top and pooped. So I am going to buy some Sulmet-would that be a wise option? My feed store carries a 16oz bottle of it. Here is my other thread on the not thriving chickie..does it all add up? So sorry for long post! https://www.backyardchickens.com/forum/viewtopic.php?pid=913792#p913792 Also if I am giving Sulmet to everyone is it ok to feed medicated starter still?