Brought 8 chickens home 2 - 3 weeks ago from feed mill to add to my group. Also switched off of medicated feed at that time. Last week (Tues., July 24th), one of my chickens started to have red poop. Wed., July 25th my ameraucana died suddenly. Thurs., July 26th I started Sulmet at 2 tablespoons per gallon. Lost rooster on Saturday (one that pooped red on Tues.). Switched to 1 tablespoon per gallon on Sunday. Treated until yesterday evening with Sulmet. Droppings were not red while on treatment. Now they just have plain water and are back on medicated feed as of last night. Splash (one that has been isolated) had a solid dropping with red mixed in it. I picked up the feed container to feed the rest of the bunch and noticed red droppings on it. I added Sulmet at 2 tablespoons in their water this morning just in case. Thoughts? Could this be something besides Coccidious? Should I be doing something different? Thanks!!!