I live within walking distance of a park and just a few minutes ago I noticed a huge (probably about a foot and a half long) Koi in the lake. People abandon farm animals (mainly ducks, geese, and turtles) there all the time so I'm assuming that's what happened with this guy. He must have gotten too big and some idiot let him free. Anyways what do I do? I'm worried for his safety because there are always people fishing down there, there are tons of wild animals, and he probably doesn't know how to catch food. But I've never had any fish bigger than a small goldfish in my life and I have no where to keep him since he's twice the size of my tank. HELP!