The black koi fish is representative of the male gender, the sun and evil. Where the white is representative of the female gender, the moon and goodness
I have an incomplete answer for this. I just got a tattoo of a koi fish that I designed (without the spot). I got it done in Japan and the tattoo artist decided to add it. He explained to me that it when a koi fish gets older...something something...and that it was very japanese. I has something to do with the aging or wisdom of a koi fish.
Koi fish Koi fish
Koi fish can live in almost any country. Koi are thought to be originally from Japan. Many people have outdoor fish ponds in which Koi are the dominant fish.
a fish, a koi carp
because it is fish
Koi are a type of specially bred carp.
Nope they sometimes eat there eggs
Koi fish usually have two eyes.
The Japanese for Koi is nishikigoi.
The sex of koi fish cannot be determined unless a)you dissect the koi or b)you witness the breeding.
Koi fish is suitable as a feeder fish for other larger fish. If a human wanted to eat a Koi fish, (which in general unlikely), it would be better eaten dead.