Is there a coccidia home remedy or something at tractor supply I can get and put in their water or food. I just cleaned the brooder.
You can get some Corid, at TSC, and use that. Here is the dose :
https://www.backyardchickens.com/threads/updated-corid-and-amprol-amprolium-dosing.818879/
Go with the severe dosing, and drip a few drops of undiluted Corid along the sick one's bill, and, hopefully you'll see improvement.