I have 23 bantam chicks that are 5 weeks old and today I noticed some very bloody diarrhea from a few of them. All of them are active and eating,drinking, etc... except for two. I have two that are "puffed up" and look cold, and are less interested in "chicken-like" activities... still eating and drinking. We recently started taking them out to the big coop (their own, no other birds) the last few days during the day to help them acclimate to the climate. Temps here have been 65-75 degrees. They all huddle in the corner when we bring them back in... even with the heat lamp. They have not been on medicated feed. I just started them on Sulmet tonight. It is the only thing I have on hand tonight. I have a few questions. 1. Does this sound like Cocci? 2. Did we move them out too soon, and should we bring them back inside during the day as well? 3. Do I need to do anything else for my droopy ones 4. How fast does the Sulmet work and any othr suggestions?