Wakagoi 若鯉 = Young Koi
waka 若 means young and goi/koi 鯉 means koi.
Yougyo 幼魚 = Junior Koi
you 幼 means immature, very young and gyo 魚 means fish.
March and April are the season of Wakagoi and Yougyo show in Japan.
** Koi? Goi?
When the sound koi changes to “goi”?
https://rinkoonline.com/japanese-koi-words/
** Koi Glossary
https://rinkoonline.com/glossary/
