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Black Diamond Medaka
IntermediateBlack body studded with lame scales like stars in the night sky. Orochi lineage crossed with lame scales.
Difficulty
Intermediate
Temperature
5〜30℃（適温20〜28℃）
Lifespan
2-3 years
Size
3-4cm
Diet
Medaka pellets
About
Black Diamond medaka is an improved variety combining Orochi's jet-black body with lame scales derived from iridophores, creating a luxurious 'black diamond' sparkle. Like stars scattered across a night sky, the reflective lame scales contrast brilliantly against the jet-black body. It inherits Orochi's lack of background adaptation, maintaining deep black in any container color. Dark containers maximize lame contrast; sunlight and LED lighting produce the most dazzling sparkle. Hardy in 5–30°C, neutral to slightly alkaline water. Lame quality depends on both genetics and environment — selecting parents with dense, bright lame is essential.
Basic Info
Origin
Japan (selectively bred variety)
Lifespan
2-3 years
Size
3-4cm
Temperature
5〜30℃（適温20〜28℃）
Diet
Medaka pellets
Care Guide
Container
Dark containers make lame scales stand out
Sunlight
Sunlight makes lame scales sparkle
Temperature
5-30°C
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)
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。
PolygenicContinuous trait from multiple genes; intensified by selective breeding.
Lame
Other
Black body (orochi line)
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.
References & Sources
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.
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 · 日本メダカ協会 品種分類マニュアル
Nomenclature follows global taxonomic authority databases.
Black Diamond Medaka Listings
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