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Oryzias latipes var.
Medaka variety displaying iridescent coloration resembling auroras. Body sides exhibit complex, light-reflective hues creating stunning visual appeal. Popular cultivar with slightly elevated husbandry complexity versus basic colors.
The Aurora group is a collective name for improved varieties that combine semi-transparent (clear) scales with external body light and lame, producing iridescent shimmer that shifts through blue, green, pink, and gold depending on viewing angle and lighting. The layering of multiple color elements means the same individual can look dramatically different under different light sources. Standard body type, roughly 3–4 cm. Enjoyable from both top and side views, with color especially vivid in dark containers and under natural or LED light. Peaceful in temperament and suitable for community tanks with other gentle varieties. Hardy across roughly 5–30°C in neutral to slightly alkaline water, though sudden changes should be avoided. Selecting the most colorful parents maintains and improves strains with richer color shifts.
Origin
Japan (selectively bred variety)
Temperature
5〜30℃(適温20〜28℃)
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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: Oryzias latipes var. (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.
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The ideal temperature for Aurora is 5〜30℃(適温20〜28℃). Avoid sudden temperature changes and maintain a stable environment.
The price of Aurora varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: July 8, 2026