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Aurora Medaka
IntermediateA fantastic medaka with semi-transparent scales and rainbow sheen. Aurora effect changes colors with light.
Difficulty
Intermediate
Temperature
5〜30℃（適温20〜28℃）
Lifespan
2-3 years
Size
3-4cm
Diet
Pellets, Daphnia
About
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. Selective breeding of the most color-diverse individuals maintains strains with richer color shifts. Particularly spectacular under LED lighting and natural sunlight.
Lifespan of the Aurora Medaka
The Aurora Medaka lives 2-3 years.
Size of the Aurora Medaka
The Aurora Medaka grows to 3-4cm.
Temperature & humidity for the Aurora Medaka
The ideal water temperature for the Aurora Medaka is 18〜24℃.
Hardy in 5–30°C, neutral to slightly alkaline water.
Basic Info
Origin
Japan (selectively bred variety)
Lifespan
2-3 years
Size
3-4cm
Temperature
5〜30℃（適温20〜28℃）
Care Specifications
- pH
- 7–8
- Hardness (GH)
- 9–19 dGH
- Water Temp.
- 18–24℃
PeacefulGroupBreeding: Easy
Sources: FishBase: Oryzias latipes / Seriously Fish: Oryzias latipes
Morphs (Varieties)
Selectively bred killifish are trait combinations of body form × body color × pattern × luminescence (internal/external) × scale types (transparent scales) × sparkle × fin morphology and so forth. Published entries include only confirmed traits constituting the given variety, with genetic inheritance patterns provided only for confirmed traits (uncertain cases omitted). Genetic patterns are provided as reference for breeding.
PolygenicContinuous trait from multiple genes; intensified by selective breeding.
Body luster (taikougai)
Other
Semi-transparent scale
Sources: JMA Japan Medaka Association — Improved Medaka Variety Classification Manual (JA) / Improved Medaka Web Encyclopedia (medakazukan, JA)
A curated selection of notable morphs. Inheritance modes are a breeding-planning guide; actual appearance varies with combos.
References & Sources
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Taxonomy & Authority
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 · Japan Medaka Association — Variety Classification Manual (JA)
Nomenclature follows global taxonomic authority databases.
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