Medaka Strain – Dark Emerald Fin

Bring a touch of refined brilliance to your medaka collection with the Dark Emerald Fin Medaka (Japanese name: ダークエメラルドフィンメダカ). Developed by Ayumu Medaka and officially released in 2022, this modern ornamental strain features a deep amber body, semi-transparent scales, and a distinctive emerald-green dorsal shine known as rinko (燐光). The shimmering net-like dorsal light makes this strain a visual standout, especially under sunlight or full-spectrum LED lighting.

Learn more about the Dark Emerald Fin Medaka on our Medaka Encyclopedia page.

• Includes: 1 Male + 1 Female
• Creator: Ayumu Medaka (Japan)
• Released: 2022
• Key Traits: Deep amber body, semi-transparent scales, emerald dorsal “rinko” shine
• Lineage: Distinct from Bronze Medaka – this is a genetically separate strain
• 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:

• Orders for live fish are non-cancellable once confirmed.
• Fish color and shine may vary depending on lighting and tank conditions.
• This item is not eligible for returns or exchanges.
• Shipping available only within the continental U.S. (excluding Hawaii and Alaska).

Shipping Information

• UPS 2-Day Air is required for DOA (Dead-on-Arrival) coverage. See our full Shipping Information page.
• We reserve the right to delay shipments if fish are not in optimal condition for travel.
• We may combine multiple live fish orders for safer, more efficient shipping.