I just noticed yesterday one of my 2-3 month old chickens is pooping blood. I've seen her eat and drink but she sits around fluffed up. I've read some info and I'm guessing it's coccidiosis. Can anyone confirm with me if this is it. Also read to use corid for about 5day in the water. Is there anything else I can do? I have 4 babies that are 2-3 months old and I have older hens 1+ years old.