Koi photo with six types

This photograph depicts six koi of a collection of ten living in a private outdoor pond in San Jose, California. The pond is about 45 cm (18 in) deep, which is shallower than ideal - it was not originally designed for koi. The largest fish seen is the yellow ogon at about 50 cm (20 in) long; it was four years old at the time of the photo.

Fish types in this picture, from top to bottom:

• shusui (blue with red streaks)
• a goldfish (the small red and white fish)
• diamond platinum ogon (white)
• ogon (yellow)
• kohaku (red on white)
• bekko (black on white)
• asagi(?) (silvery black on white)