Please does anyone have an idea what is the problem with my rooster, or what I can do to help him. 3 weeks ago I noticed his eyes were really watery and he looks like he is crying. He has no other symptoms. All my other chickens and rooster are fine. He looks really healthy, clean neat feathers, active, eating and crowing. His eyes are not sore or swollen and he has no bubbles in them. 1st week I just waited to see if he got any other symptoms so I could get the correct medicine. But nothing happened. 2nd week I have been treating him with Boi B 12 powder in his drinking water and have him isolated. 3rd week, finished treatment and there is still no change in his eyes, and I am now using apple cider vinegar to his water. Any ideas what is causing his watery eyes or what else I can try?