I started my newest chicks on medicated feed for ~1wk, then switched to unmedicated with probiotics. I have 2 sets of chicks (one at 1.5wks and one at 7 wks - the older ones got medicated feed for about 2 wks). As the chicks are inside and their droppings fall down through wire mesh onto a puppy training pad, I am able to see what they look like. ~4 days ago I noticed what looked like a small amount of blood in a young chicks stool and then yesterday, one of my 4 older chicks also had what appears to be blood in her stool (gelatinous pink/red slime). Although they are near each other inside, they are not in the same cage. And the young chicks have never been outside (the older ones have been out ~4 times - I know enough to get bacteria, worms, anything else they eat). Is it possible these 2 episodes mean nothing, or should I start medicating? And if yes to medication, what should I use (antibiotics, dewormer, both, etc)? At this point they all seem to be eating and drinking well, have good energy and seem content, although I know birds like to pretend they are healthy so they do not get picked on. Thanks for any insight.