The stores listed below are focusing on medaka and goldfish

Be sure to check out the information on medaka and goldfish, which are easy to care for and have a deep understanding of how to raise them!
All Kanedai stores carry medaka and goldfish. Please see this website

Honmachida store

Honmachida Store Blog Goldfish Category

Honmachida store

Honmachida store blog - Medaka category

Ebina store

Ebina store blog - Medaka and Goldfish category