Have you gotten any Corid to start in their water? It's in the cattle medicines at feed stores in powder packets or liquid Dosage is 1 1/2 tsp of powder or 2 tsp of liquid to a gallon of water, and change it daily. I would place her back with the others and give them all Corid for 5 days. As for the sick chick, give her a couple of drops of undiluted Corid twice a day, and then dip her beak into the Corid water several times every hour. To make the concentrated Corid from the powder, take 1 1/2 tsp of powder and add to 2 tsp of water. Medicated feed does not necessarily prevent coccidiosis, so she needs the medicine in the Corid which is a higher concentration of amprollium.
