Ok, y'all ask about how my brooder is set up: I have large pine chips, water at the opposite end of the heating bulb, a brooder thermometer in the middle, The opposite end from the heat bulb is open so they can get fresh air, my chicks eat and drink a good. But will all the sudden die for no reason. I have use the medication for cocci in their water for a few days after one does just incase that's the problem. They eat chick starter. I do not use chemicals. When I cleaned out the router all I do is scoop out the old bedding and poop and put New in. So why are all my chicks dying? Today the prettiest little lavender chick I've ever saw was fine one minute then started to flop around as if it was a neurological problem and died right in front of me as I was cleaning the other chickcage. As you can see the partridge silky is all the sudden sick today Someone please help!