We just moved to a property with a fairly large natural pond. To our surprise a previous landowner tossed their Koi and goldfish from their small decorative pond into the natural pond. It's been about 5 years and there are hundreds of koi and goldfish.
The majority of the koi look like the one pictured.
I just wanted to know if I'm right guessing it as a mutt. And if it ornamental quality.