I have 5 week old chicks one is itty bitty. She is feathering a little slower and is smaller by at least half. She had bloody stools so medicated them all with CORID. It seems to have cleared up. She eats with everyone else and her crop empties, a little slower but it empties. Do I just wait it out and hope she is o.k. or should I try to suppliment with something? My first batch of chicks so really not sure what to do.