For example, there are koi with light blue spots, ones with large red patches on their backs, or all-metallic gold. But the most winning fish often just boil down to these three varieties.

A koi specialist is said to have told staff that the chemicals in the coins were killing the fish. Three valuable koi have died in the last five months and one of the five remaining fish has begun ...

For example, there are koi with light blue spots, ones with large red patches on their backs, or all-metallic gold. But the most winning fish often just boil down to these three varieties.