The ornamental fish breed retails between $20 and $20,000 on average per fish. Local company Ohio Koi's home to thousands of them.

The typical cost to build a koi pond ranges from $450 to $100,000, with a national average cost of $14,000. The main factors that affect koi pond cost include the pond size and shape, excavation, ...

Nishikigoi, better known as koi fish, are a well-known variety of the common carp. They are bright red and white and revered for their vibrance and grace. Even other animals, including their predators ...

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 ...

A dozen koi fish poke their faces up to the pond’s surface, hoping for a bite to eat. They’re smarter and more social than most would give them credit for, and they recognize horticulturists Mark ...