Believe it or not the fish in my pond all came from Walmart and friends whose children were over the "I want a gold fish" phase. lol I have paid upwards of $200 for koi before but my pond was problematic early on. Getting them through winter was not successful. You would think I would have bought goldfish first not AFTER we figured out the successful formula for over wintering. My largest koi cost $5 at Walmart. This is his third summer after surviving two winters under the ice. He is about 14" long and very girthy. Also a few shubunkins and what looks to be some koi breeds. At least I assume so as they are black with various red, orange or pearl colors and I only had one black koi (who did not make it through his first winter.) Of course, 'somebody' could have been pregnant when purchased so who knows. They don't have whiskers so would seem not koi. Perhaps when a koi and goldfish breed they lose the whiskers?