Koi aren't lightweights either; they typically tip the scales around 35 pounds (16 kg), and experts advise filling a pond ...

A Bed-Stuy fire-hydrant-fueled street aquarium that went viral on social media was forced to close due to frigid temperatures and snow — but organizers claim the fish are alive and swimming ...

The oldest koi fish in History lived in a Japanese family’s pond. This beautiful scarlet-hued koi fish was named Hanako, ...

District fish biologists removed the large koi which was most likely intentionally released into the McKenzie River. Koi can live up to 25 years, reproduce rapidly, and can survive very cold winters.

The Dubuque Arboretum and Botanical Gardens are seeking funds to upgrade multiple pieces of equipment in their Koi fish pond in the Japanese Gardens.