Terminology
Here is a handy list of terms you may hear or read relating to koi.
Ai
Aka
Aka Bekko
Aka Matsuba
Asagi
Bekko
Benigoi
Beni Kumonryu
Budu Goromo
Chagoi
Doitsu
Go Sanke
Goshiki
Hageshiro
Hariwake
Inazuma
Jinbei
Kage
Kigoi
Kindai
Ginrin
Kin Showa
Kohaku
Koromo
Kujaku
Menware
Muji
Ochiba Shigure
Penducle
Purachina
Reticulation
Sanke
Showa
Tancho
Tategoi
Tosai
Utsuri
Wagoi
Yondai
Yonsai
Zu Kin Kaburi
Blue or indigo colour
Red body
Red koi with black markings
Red koi with pinecone markings
Grey\Blue koi with reticulated scales
Single white\red\yellow koi
Red
Kumonryu with red markings
Grape pattern purple koi
Tea carp\light brown koi
German lineage, not fully scaled
The big 3, Kohaku, Sanke & Showa
5 coloured koi
Black koi with white on head. fins or tail
2 coloured platinum koi with either orange or yellow
Lightening stripe (zig zag)
Sanke Lineage
Shadow
Yellow koi
Modern
Koi with silver or gold scales
Mettalic scales Showa
Red and white koi
Robed koi
Metallic white\red koi
Lightening head pattern
Single colour
Brown and grey koi -Autumn leaves on snow
Area before the tail
Platinum
Net pattern
White koi with red and black
Black koi with red and white
Single red spot on head
Koi with potential
First year koi
2 coloured koi - Black with red, white or yellow
Scaled koi
4 step
4 years old
Red Head