Medaka Strain – Neptune Medaka

The Neptune Medaka (Japanese name: ネプチューンメダカ) is a striking improved medaka strain developed by Medakaya Savannah (メダカ屋サバンナ) in Saitama Prefecture, Japan. First released in July 2023, this line was created through the intentional crossbreeding of multiple signature strains to achieve its defining traits: a rich, deep blue body and layered reflective expression.

The Neptune Medaka embodies a balance of elegance and depth—its complex coloration and reflective quality stand out in both sunlight and artificial lighting. It is ideal for hobbyists seeking a modern, blue-toned medaka with high visual impact and selective breeding potential.

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

• Includes: 1 Male + 1 Female
• Breeder: Medakaya Savannah (Saitama, Japan)
• Release Year: July 2023
• 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 has been confirmed.
• Please note that colors may vary 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 do not ship to Hawaii or Alaska.

Shipping Information

• Please choose UPS 2-Day Air. DOA only applies to 2-Day Air. Please read our Shipping Information page.
• Orders may be canceled if stock is unavailable or if the fish are not fit to ship at the time of packing.
• Multiple live fish orders may be combined for efficient shipping.