I have Corid on hand, so I'll start that right away. Do you know if it loses effectiveness if it has been open awhile, like 6 months, but in a ziploc bag?
My little one is about 6 weeks old. Her brooder mates are all healthy. Hatchmates are running about 260 grams while she is at 117 grams. She is very weak, but no other real symptoms. When I first found her, she couldn't hold her head up, and rested back on her rump unable to stand on her...