
AI-generated image
A fantastic medaka with semi-transparent scales and rainbow sheen. Aurora effect changes colors with light.
Aurora medaka is an improved variety combining semi-transparent scales with lame and external body light, creating an aurora-like shimmer that shifts through blue, green, pink, gold, and other colors depending on light angle. Like the northern lights, its fantastical color variation is the chief attraction — the same individual appears completely different colors depending on viewing angle and light source. Adaptable to both top-view and side-view observation styles. Hardy in 5–30°C, neutral to slightly alkaline water. Selective breeding of the most color-diverse individuals maintains strains with richer color shifts. Particularly spectacular under LED lighting and natural sunlight.
Origin
Japan (selectively bred variety)
Lifespan
2-3 years
Size
3-4cm
Temperature
5〜30℃(適温20〜28℃)
Pellets, Daphnia
Enjoy color changes from various viewing angles
Neutral to slightly alkaline
Medaka pellets twice daily
Sources: FishBase: Oryzias latipes / Seriously Fish: Oryzias latipes
改良メダカは体型×体色×柄×光(体内/体外)×鱗(透明鱗)×ラメ×ヒレ等のトレイト合成。掲載は当該品種を構成する確証トレイトのみで遺伝形式は確証のみ付与(不確実は省略)。遺伝形式は交配の参考。
Sources: JMA日本メダカ協会 改良メダカ品種分類マニュアル / 改良メダカWEB図鑑(medakazukan)
A curated selection of notable morphs. Inheritance modes are a breeding-planning guide; actual appearance varies with combos.
Edited & verified by: br-choku editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: (Temminck & Schlegel, 1846)
Synonyms: Aplocheilus latipes (Temminck & Schlegel, 1846), Poecilia latipes Temminck & Schlegel, 1846, Oryzias latipes latipes (Temminck & Schlegel, 1846)
Authority databases: FishBase · GBIF · 日本メダカ協会 品種分類マニュアル
Nomenclature follows global taxonomic authority databases.
Find listings for this species
Semi-transparent scales may show internal organs
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Aurora Medaka is 5〜30℃(適温20〜28℃). Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Aurora Medaka is 2-3 years. With proper care and nutrition, they can live a long and healthy life.
Aurora Medaka typically reaches 3-4cm as an adult. Size may vary depending on care conditions and individual genetics.
Aurora Medaka feeds on: Pellets, Daphnia. Aim for a balanced diet with appropriate feeding frequency.
The price of Aurora Medaka varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: July 8, 2026