My chicks are on medicated chick starter but I am seeing symptoms of coccidia - reddish color to stool - one died overnight and now a couple more are acting puny. They are 4 1/2 weeks old. I do have Corid powder, so can I use that in addition to the medicated food? Can I use the 1/2 tsp Corid per gallon of water dosage as normal? I just put them into a freshly cleaned brooder, as well, and filled the water container with water that has the electrolytes/vitamin powder added. They manage to spill water all the time, so I think the moisture in the bedding may be what made things go bad.