Medaka Strain – Josui

Experience the refined beauty of the Josui Medaka (Japanese name: 浄水) with this premium breeding pair — 1 male and 1 female. Developed by Wada-san of Medaka no Yakata, this line is admired for its graceful fin expression and consistent strain stability.

Learn more about the Josui Medaka on our Medaka Encyclopedia page.

• Includes: 1 Male + 1 Female
• Creator: Wada-san (Medaka no Yakata)
• Shipping: UPS 2-Day Air strongly recommended

※ All photos shown are original images taken by SNR Medaka USA. Unauthorized use or reproduction is strictly prohibited. Photos are for reference only — actual fish may vary.

Important Purchase & Shipping Information

For customers who purchase physical Medaka:

• As a general rule, we do not accept cancellations for Medaka sold in-kind after the order is confirmed.
• Please note that the appearance may differ depending on lighting and container background.
• This item is not eligible for returns or exchanges.
• We ship to the Continental U.S. only. Sorry, we currently do not ship to Hawaii or Alaska.

Shipping Information

• Please select UPS 2-Day Air at checkout. Our DOA (Dead-on-Arrival) policy only applies to this shipping method. For full terms, visit our Shipping Information page.
• Shipping may be delayed or canceled if fish are not in optimal condition at the time of packing.
• We may combine multiple live fish orders for safer, more efficient delivery.