and today they're some of the most expensive pet fish in the world. But why? Koi were originally raised in Japan in the 1700s when rice farmers first began breeding them for their distinct colors ...

and today they're some of the most expensive pet fish in the world. But why? Koi were originally raised in Japan in the 1700s when rice farmers first began breeding them for their distinct colors ...

The Samurai Koi Galaxy Betta Fish has an array of bright orange and red koi speckles and beautiful dark blue colors that you ...

Some of the world’s most expensive fish are to ... for their vibrant colour patterns. Koi keepers are willing to pay premium prices for fish with vibrant color patterns, with many keepers ...