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Oryzias latipes var.
Improved medaka with orange-to-red gradient reminiscent of sunset sky. Beautiful warm-color gradient body color. Popular variety that evokes the scenery of twilight when viewed.
Yuuyake (Sunset) medaka is an improved variety with orange-to-red gradient body color evoking a sunset sky. The scene of a setting sun painting the sky orange, red, and purple from horizon to zenith is directly expressed in the body color, evoking romantic twilight scenes for observers. Body color varies from orange-dominant to red-dominant individuals — displaying multiple individuals together creates an enjoyable sunset gradient effect. Standard body type, 2–4cm. Hardy in 5–30°C, neutral to slightly alkaline water — easy for beginners. Regular carotenoid-rich color-enhancing food maintains the gradient coloration. Outdoor sunlight deepens colors further. Easy to breed. Peaceful and community-friendly. The warm, gentle beauty of sunset tones is beloved by many enthusiasts.
Origin
Japan (selectively bred variety)
Lifespan
1-3 years
Size
3-4cm
Temperature
5〜30℃
Medaka pellets, daphnia
White container showcases gradient body color beautifully
Sunlight makes body color gradient more vivid
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: 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 · 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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5-30°C (optimal 20-28°C)
Hardy and easy to keep. Suitable for beginners
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Yuuyake Medaka is 5〜30℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Yuuyake Medaka is 1-3 years. With proper care and nutrition, they can live a long and healthy life.
Yuuyake Medaka typically reaches 3-4cm as an adult. Size may vary depending on care conditions and individual genetics.
Yuuyake Medaka feeds on: Medaka pellets, daphnia. Aim for a balanced diet with appropriate feeding frequency.
The price of Yuuyake Medaka varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: July 8, 2026