I almost lost both Koi and Neptune. They are ok, just not 100% with the ball game. They swim as if half paralyzed and have something wrong with their nervous system.
Neptune has a fistula but seems happy... Basically a fistula is when something happens between the passage way of to organs, in his case somewhere dealing with his bowls. He swelled up and literally pop'd, causing him to get a sore that is about 1/4" in diameter on his chest, that he poo's out Yea...
So 3/3 of my males are ill, who knows what'll happen but my tanks have been handicapped for them... But I wont let this discourage me.
I bought 2 more males today... Will get photos of them up later.