Pure White Hikari Transparent Daruma Medaka – ピュアホワイト透明鱗ヒカリダルマメダカ

A snow-white gem with a compact, glowing form

Physical Characteristics
The Pure White Hikari Daruma Medaka is a uniquely elegant variety that combines the pristine coloration of the Pure White line with the symmetry of the Hikari body type and the compact, rounded form of the Daruma. This triple combination makes the fish not only rare but mesmerizing in motion.

• Body Color: Unblemished pure white, with no yellow pigmentation; clean and translucent in appearance
• Scale Type: Transparent, which enhances purity and creates a crystal-like appearance
• Body Shape: True Daruma type – shorter, rounder body due to partial vertebral fusion
• Fin Structure: Hikari type – symmetrical and elongated dorsal and anal fins that reflect light gracefully

The contrast of the fish’s neat shape and luminous white coloration makes it a standout in both top- and side-view displays.

Origin and Development

• Year of Development: 2003
• Original Breeder (作出者): Yukio Ōba (大場 幸雄) at Medaka no Yakata (めだかの館)

Before the Pure White line was established, most white medaka showed gender-related coloration differences—males often looked silvery, and females appeared creamy. In 2003, Yukio Ōba of Medaka no Yakata successfully developed a strain where both sexes exhibited consistently bright, pure white coloring. The Hikari and Daruma traits were then combined into this variety through careful selection over generations.

The Daruma form is known to be influenced by genetics and environmental factors, particularly water temperature during early development. Achieving and stabilizing the Hikari Daruma type requires specialized breeding efforts.

Breeding and Care Considerations

• Fixation Rate: Approximately 99% of offspring retain the pure white body color
• Body Type Variability: Even from two Daruma parents, offspring may include normal, semi-Daruma, and Daruma body types
• Sensitivity: Daruma medaka are more delicate than standard types and require stable temperature and clean water conditions
• Recommended for: Intermediate to advanced breeders due to their care sensitivity

Conclusion
The Pure White Hikari Daruma Medaka is a shining example of advanced medaka breeding—uniting the minimal beauty of pure white, the symmetry of Hikari, and the charming compactness of Daruma. For those seeking an ornamental fish that embodies grace, rarity, and refined structure, this medaka offers something truly special.

Sources / 出典:

• 改良メダカWEB図鑑 – ピュアホワイトヒカリダルマメダカ
• めだかの館ブログ – ピュアホワイト「雪小町」とは
• めだかの館ブログ – ピックアップ品種「ピュアホワイト透明鱗」