OK....Have an emergency, and i get a lot of good info off of here. Hope you can help me with this. I have searched both subjects, but cant find a clear explanation or path. Have some chicks, 3 weeks old. One fluffed up and had the runs, figured it was cocci.... started treating it for that with corrid. now, one day into corrid, it has classic symptoms of sour crop. swollen crop, and can massage syrup consistency liquid out of it as i am tipping her toward the ground. how do i treat this. is it a symptom of cocci, or did i misdiagnose from the beginning? if it is sour crop, will the corrid hurt the chick, or should i continue the water treatment? At this moment i have the chick separated, corrid spiked water, and a small dish of yogurt in there with her. Any help is appreciated.