Medaka Encyclopedia — 87 Species Directory

Improved medaka characterized by deep red color. Beautiful vivid crimson body color reminiscent of azami (thistle) flowers. Among red medaka, this variety is prized for its especially deep coloration.

Improved medaka with short, round daruma body type. Adorable plump form has high ornamental value. Warm water is essential for maintaining body shape.

Improved medaka with beautiful blue external body light. Named because the blue-white external light emanating from the back evokes a galaxy. Popular variety with fantastical beauty like a nighttime water surface.

Improved medaka with white body color and red eyes (albino). Named for its cute appearance resembling a white rabbit. Impressive contrast between clear white body and red eyes.

Multicolored glitter scattered across body radiates like fireworks. Lame changes to rainbow colors with light angle. Rapidly gaining popularity as a summer icon.

Improved medaka with deep emerald green body reminiscent of jade. Green medaka are rare, with unique coloration popular among collectors. Color shifts with light angle.

Striking variety with jet-black body and yellow lame. Named for yellow flashes of lightning on black body. High ornamental value due to vivid contrast.

Medaka variety with jet-black body. Darker than Black Diamond lineage, with fins also deeply black being most valued. Appreciated for understated beauty.

Red and white bicolor medaka like Kohaku koi. Each individual has unique markings. Color fixation is challenging, making selection deeply rewarding.

Improved Youkihi with deeper, more intense crimson. The name 'Koutei' reflects its regal red. Color deepens outdoors.

Superior variety with even deeper red than Youkihi. Transparent scales reveal internal organs, further emphasizing redness. Pursuing the ultimate in red coloration.

Black body with Miyuki external light and blue lame. Jet-black body with glittering blue lame creates a mystical night-sky appearance.

Deep lapis lazuli blue body evokes the gemstone. Combined with external light, emits a mystical glow. Most beautiful in dark containers viewed from above.

Medaka with elongated dorsal, caudal, and pectoral fins. Developed by Matsui fish farm. Gracefully flowing fins are best appreciated from the side.

Elegant improved medaka with pale pink body color accented with orange-red. Delicate coloring evokes Japanese aesthetics. Particularly beautiful when viewed from above in white containers.

Transparent scales allow red, white, and black colors to appear like brocade fabric. Unique beauty with pigments floating in translucent body. Best viewed from above.

Beautiful modified medaka with red-orange body and external light. Named for the elegant glow like Princess Otohime of Ryugu Palace. Best appreciated from above.

Luxurious improved medaka with orange-red body color and external body light. Beautiful combination of orange-red body and external body light on the back, appealing in both top-view and side-view.

Rare medaka with greenish external light. Unlike the usual silver-white, the green external light creates a unique atmosphere. Rare and popular with collectors.

Medaka where external light spreads across the body like stars. A band of light reminiscent of the Milky Way flows across the body. Premium variety, best viewed from above.

Medaka with scattered lame (glitter) creating a nebula-like fantasy shimmer. Blue-purple body with glitter is especially stunning viewed from above.

Medaka with deep blue body color reminiscent of the deep sea. Deeper and more mysterious blue than Marine Blue. Looks most beautiful in dark containers.

Improved medaka characterized by vivid vermilion body color. Beautiful deep vermilion color like shusha (vermilion mineral pigment containing mercury). Outstanding coloration among red medaka varieties.

Beautiful orange-red of Youkihi with elongated fins. Side view shows elegant flowing fins. Available in Matsui long-fin and Swallow types.