Hi 2bd4c10c I am so very sorry to read what has happened with your chicks. I have some ex-bat hens and have lost one that had suspected coccidia ... after having to have her put to sleep, we treated all the hens as a preventative measure with amprolium and then a 5-day vit boost. After stocking up my meds cabinet (should have done this sooner!!) another hen a few weeks later appeared to be starting to suffer the same ... gave her nutri-drops (nutri-drench) and quality oil of oregano mixed with veg oil via syringe for a couple of days and she pulled through miraculously. Please take a look at: fresheggsdaily.com I think Lisa Steele is fantastic in the world of chickens and I have realised in practice what preventative and natural ingredients can do to stave off and cure infections/diseases! A great help with so many things chicken, and gardening. All the best to you.