Residents in one Michigan town are being asked to help monitor lakes for bright orange koi, which conservation leaders describe as an escalating invasive problem. For anglers, the ...

Raising the bright orange or red koi, an ornamental fish that's both beautiful and valuable, requires careful consideration and unique resources in order to create a profitable business. The key is ...

Once a simple food fish, koi have transformed into living jewels, with some fetching sky-high prices in the global luxury market. Here's how this happened. In the world of high-end pets, few creatures ...

The koi catch wasn't as large as Dave Owen hoped it would be this year. The good news is the weather was great and no one fell in the pond. But they didn't catch that many koi and many of the ones ...

Sourcing and selling koi carp — some of the most expensive pet fish in the world — can be both a profitable business and an enjoyable pursuit. This is especially true for Tim Waddington, the owner of ...