and is the most expensive koi fish ever sold. Koi may just look like an oversized goldfish, but they're not even remotely related. Koi are actually a type of carp, and today they're some of the ...

Q: How do the specific color changes in fish like goldfish, betta fish, and koi fish relate to their health or mood? A: Specific color changes often indicate health or stress levels; for instance ...

Koi bettas may be more difficult to find than an average goldfish. They’re sold online and at large or high-end fish stores.

Donor-Advised Funds Support KQED by using your donor-advised fund to make a charitable gift. If you take a walk around San Francisco, it won’t take long before you see a koi fish. Not a real one, of ...

Several locals who live in Ulverston, Cumbria, reported the animals were breaking into their ponds and killing their Koi Carp ...

Residents in Ulverston whose ponds were raided by fish-eating otters' say they have come back. Several locals reported the animals were breaking into their ponds and killing their Koi Carp fish in ...

The fish, he explained, was a hybrid of a leather carp and a koi carp and after a 25-minute battle, it was all over. The goldfish that had been a white whale to many was in Mr Hackett's net.