Well, it's worth 1.8 million dollars. It won grand champion at the All Japan Koi Show in 2017, and is the most expensive koi fish ever sold. Koi may just look like an oversized goldfish ...

In recent years, koi have become hugely popular in Asia, with Japan's koi exports doubling over the past decade to 6.3 billion yen ($43 million) — one-fifth of them shipped to China, the top ...

Koi fish are what you might call a happy accident. In the 1600s, Japanese carp farmers began noticing unusual color variations among the fish. "The popular koi fish of today are actually ...

Rice farmers in Japan began keeping and breeding them in the 19th century. With more than 100 types of koi, there are many options of vibrant colors, ranging from oranges, blues, yellows and whites.

The All Japan Nishikigoi Promotion Association, a group of 'nishikigoi' (ornamental carp) breeders and dealers, will hold the '55th All Japan Nishikigoi Show' at Tokyo Ryutsu Center on January 25 and ...