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Hakuto Medaka
IntermediateOryzias latipes var.
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.
Difficulty
Intermediate
Temperature
5〜30℃
Lifespan
2-3 years
Size
3-4cm
Diet
Medaka pellets, daphnia
About
Hakuto (White Rabbit) medaka is an improved variety combining white body color with albino (red eyes) characteristics. The striking contrast between a pure white body like a white rabbit and albino red eyes — blood vessels visible through pigment-free irises — creates an endearing appearance beloved by many enthusiasts. Melanin pigment deficiency produces the white body color. Key care consideration: UV sensitivity means strong direct outdoor sunlight must be avoided; bright indoor keeping is standard. Weaker eyesight than normal individuals means food should be distributed evenly across the water surface, with longer feeding times than other varieties. Avoid housing with aggressive species; albino-to-albino or peaceful community pairing is ideal.
Lifespan of the Hakuto Medaka
The Hakuto Medaka lives 2-3 years.
Size of the Hakuto Medaka
The Hakuto Medaka grows to 3-4cm.
Temperature & humidity for the Hakuto Medaka
The ideal temperature for the Hakuto Medaka is 20〜28℃.
Hardy in 5–30°C, neutral to slightly alkaline water.
Basic Info
Origin
Japan (selectively bred variety)
Lifespan
2-3 years
Size
3-4cm
Care Specifications
- pH
- 7–8
- Hardness (GH)
- 9–19 dGH
- Water Temp.
- 20–28℃
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.
RecessiveVisual only with two copies; one copy = het (carrier).
White bodyAlbino
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: 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 · Japan Medaka Association — Variety Classification Manual (JA)
Nomenclature follows global taxonomic authority databases.
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