BACKGROUND: https://www.backyardchickens.com/t/...watery-eyes-sleeping-a-lot-updted-added-video I went and got some Tylan 50 inj at the Tractor Supply store. As only one appears sick and the others appear fine, they were still in the same batch of chickens. Not sure if they are related but they were all in the same pool brooder when I purchased them and have been housed since then, together, for the past week. I just separated the sick one yesterday. Even though the other two appear fine, should I treat them with Tylan 50 inj anyway as if they were sick? Or do I actually have to just sit and wait? Thanks.