Over the years I have become more repelled by GMO feed and went organic. Some organic feeds were refused by my birds, but once I found the right one, they eat well with little waste. I plan on raising chicks again this year and know there's no such thing as an organic starter with Corid/Amprol added. I was considering using Corid in the water at 4 weeks old for 5 days, then 3 weeks later using Sulfadimethoxine 3 days only, then repeating the process every three weeks until they are 6 months old. This way I could feed this great quality organic starter I like. Has anyone used medicated water this way instead of in feed? I know some folks claim to use no Coccidiostats at all, but in my past experiences Cocci had to be dealt with. The reason I didn't just mention Amprolium is because some of the several strains of Cocci won't be eliminated by Amprol. The only way I stopped an outbreak once was with Sulfadimethoxine.