My chicks are about 18-19 weeks. This morning I discovered this. Never had a problem before. My concern is Coccidiosis or if it could happen from stress. I sorta stressed them out last night. I had to freshen the coop and I did it too late and they were already in for the night. They ended up hiding in the corner. The one on the bottom of the hiding pile is the one who is having trouble today with bloody stool or urate. If it's stress, fine. I won't be doing it again. If it's something else and that can kill them quick, I need to know so I can go get meds today. Any suggestions? Very water almost none existent poop coming out. Mostly bloody liquid.