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A beautiful medaka with glitter-like reflective scales scattered across the body. Shines in seven colors with light.
Lame medaka is a collective term for improved varieties featuring iridophore-derived reflective scales scattered across the body, sparkling brilliantly under light. The name 'lame' comes from the French word for metallic thread, reflecting the jewel-like shimmer of the body surface. Depending on light angle, the scales appear to shift through blue, green, gold, silver, and other hues. Lame quality — density, scale size, and brilliance — is strongly influenced by parental genetics, making careful selection of lame-rich parents critical for quality improvement. Dark containers best showcase the sparkle. Compatible with many body color varieties, producing a wide range of lame medaka strains.
The Lame Medaka lives 2-3 years.
The Lame Medaka grows to 2-4cm.
The ideal water temperature for the Lame Medaka is 18〜24℃.
Origin
Japan (selectively bred variety)
Lifespan
2-3 years
Size
2-4cm
Temperature
5〜30℃
Sources: FishBase: Oryzias latipes / Seriously Fish: Oryzias latipes
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.
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.
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.
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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Artificial feed, Daphnia
A black container makes the lame stand out
Looks beautiful under LED lighting
Lame quality (density, grain size, brightness) depends heavily on the parents, so carefully select lame-rich parents for pairing.
Adapts to 5-30°C and neutral to slightly alkaline water and is easy to keep. Avoid sudden water changes.
Feed mainly prepared food, supplemented with live food such as daphnia. Keep portions to what is eaten without leftovers.
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Lame Medaka is 18〜24℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Lame Medaka is 2-3 years. With proper care and nutrition, they can live a long and healthy life.
Lame Medaka typically reaches 2-4cm as an adult. Size may vary depending on care conditions and individual genetics.
Lame Medaka feeds on: Artificial feed, Daphnia. Aim for a balanced diet with appropriate feeding frequency.
The price of Lame Medaka varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: August 31, 2026