The Black Miyuki Long-Fin Medaka is a captivating variety that combines the deep black coloration of the Black Medaka with the shimmering dorsal shine characteristic of the Miyuki lineage. Its most distinctive feature is the elegant extension of all fins, resulting in a graceful and flowing appearance.​

Physical Characteristics:

• Body Color: Deep black, providing a striking contrast to the silvery dorsal sheen.​
• Dorsal Shine: A luminous, silvery-white glow along the back, inherited from the Miyuki strain.​
• Fin Length: All fins, including dorsal, anal, and caudal fins, exhibit significant elongation, enhancing the fish’s elegant appearance.​

Breeding History:

The long-fin trait, known as “Hire-Naga” in Japanese, was first developed in 2015 by breeder Katsujirou Matsui. This trait has since been incorporated into various medaka strains, including the Black Miyuki, to enhance their ornamental appeal.​

Conclusion:

The Black Miyuki Long-Fin Medaka is a testament to the beauty achievable through selective breeding. Its combination of deep black hues, shimmering dorsal shine, and gracefully extended fins makes it a prized addition for enthusiasts seeking elegance and distinction in their aquatic collections.

Image and translation courtesy of: https://medakazukan.net/0269_kuromiyukihirenaga/