The Japanese symbolism of fish goes so far as to categorize certain fish according to their attributes. Each classification is proposed to elicit a specific outcome. For example:
Yamabuki: The gold fish represents gold, wealth and prosperity.
Ogon: The platinum colored fish also represents the fulfillment of wealth in the form of success in business.
Kumonryu: A midnight black colored fish that is named after a Japanese dragon of transformation - and this fish is said to bring about change in life circumstances.
Kohaku: Believed to encourage advancement in career.
Kuchibeni: Also white and red (known as a "lipstick" fish with a white body and red markings around the mouth) said to inspire long lasting, loving relationships.