I was washing his butt and noticed two things: it looks like his butt was getting pecked by the other chicks, and his vent was leaking a white liquid. Pics: https://imgur.com/a/lvZT3BG What might be the issue? I've been putting Corid in their water since day one to prevent coccidiosis, so I don't think it's that. They're all eating Flock Raiser by Purina. No heat lamp (chicks are about a week old now). Any ideas?