And the better-looking the fish, the more a buyer is willing to pay. Yvo: Yeah, it depends. You can buy some small and cheap koi fish for a couple of bucks, but also, yeah, it can get up really ...

Koi fish have got a lot going for them. "[They are] not only a pet, but also art," says Taro Kodama, president of Kodama Koi Farm. "They are called living jewels — beautiful as one koi, even more ...