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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.
Origin
Japan (selectively bred variety)
Lifespan
2-4 years
Size
2-4cm
Temperature
5〜30℃(適温20〜28℃)
Artificial feed, Daphnia
ラメの質は親の遺伝が大きい
黒容器で飼育するとラメが映える
LEDライトで鑑賞すると美しい
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.
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選別でラメの数を増やしていく
水質は弱酸性〜中性
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Lame Medaka is 5〜30℃(適温20〜28℃). Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Lame Medaka is 2-4 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: July 8, 2026