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Carassius auratus var.
Pure white Ranchu. Snow-white body with developed wen creates beautiful contrast. Clean appearance is popular. Different lineage from red Ranchu.
The White Ranchu is a Ranchu of pure-white coloration, in which the well-developed head wen forms a beautiful contrast against the snow-white body, giving a clean, refined look that makes it popular. Distinct from the solid-red Ranchu, this white lineage's appeal and judging rest, in top-down viewing, on the good shape of the wen and the beauty of the all-white body. With no dorsal fin and the classic Ranchu form—a head wen and a rounded, powerful body—its lines are accentuated all the more by the pure-white color. Because it demands the usual Ranchu attention to body shape and wen, it is regarded as a variety for intermediate and more experienced keepers. House it in a container of 60 liters or more with clean water, appropriate feeding, and regular water changes. The white coloration shows dirt and lesions readily, which has the side benefit of making it easier to monitor the fish's health.
Origin
Japan
Lifespan
10-15 years
Size
15-20cm
Temperature
15〜28℃
Goldfish pellets, bloodworms, brine shrimp
Do not use color-enhancing food to maintain pure white
Dirt shows on white body. Keep water pristine
Sources: FishBase / Aqueon Goldfish Care Guide
金魚品種は体型・尾型・鱗・色の選抜固定(line-bred)。出目・透明鱗(キャリコ)・白子等は単一座。
Sources: Wikipedia - Goldfish (Varieties) / 金魚 - Wikipedia (日本語版・品種)
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: Carassius auratus var. (Linnaeus, 1758)
Synonyms: Cyprinus auratus Linnaeus, 1758, Carassius auratus auratus (Linnaeus, 1758), Cyprinus thoracatus Valenciennes, 1842, Carassius burgeri Temminck & Schlegel, 1846, Cyprinus chinensis Gronow, 1854
Authority databases: FishBase · GBIF · FishBase: Carassius auratus · GBIF: Carassius auratus · 日本らんちう協会
Nomenclature follows global taxonomic authority databases.
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Promote white wen growth with high-protein food
May yellow from sunburn. Avoid direct sunlight
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for White Ranchu is 15〜28℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of White Ranchu is 10-15 years. With proper care and nutrition, they can live a long and healthy life.
White Ranchu typically reaches 15-20cm as an adult. Size may vary depending on care conditions and individual genetics.
White Ranchu feeds on: Goldfish pellets, bloodworms, brine shrimp. Aim for a balanced diet with appropriate feeding frequency.
The price of White Ranchu varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: July 8, 2026