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Sarasa Wakin
BeginnerA wakin with red-white sarasa pattern. Hardy traditional Japanese goldfish with active swimming.
Difficulty
Beginner
Temperature
5〜30℃（適温18〜24℃）
Lifespan
10-15 years
Size
15-30cm
Diet
Pellets, Bloodworms
About
The Sarasa Wakin is a traditional Japanese goldfish combining the hardy, streamlined body of the Wakin with the classic sarasa (red-and-white) coloration pattern, in which vivid red markings contrast with a pure white base. This clean, bold coloration aligns with long-standing Japanese aesthetic values and has made the Sarasa Wakin one of the most enduring ornamental goldfish in Japan. Like the Wakin, it is an active, strong swimmer best suited to outdoor ponds or large aquariums, where it can grow to 15–30 cm and live 10–15 years under good conditions. It is cold-hardy, adapting to temperatures from 5 to 30°C and capable of year-round outdoor pond keeping without heating. Its vigorous appetite and competitive swimming make it incompatible with slow-moving fancy varieties. Maintaining the white-and-red contrast in the best condition requires clean water and, optionally, color-enhancing foods.
Basic Info
Origin
Japan
Lifespan
10-15 years
Size
15-30cm
Temperature
5〜30℃（適温18〜24℃）
Diet
Pellets, Bloodworms
Care Guide
Housing
Best in spacious tank or pond
Temperature
Adapts to wide temperature range
Care Specifications
- pH
- 6–8
- Hardness (GH)
- 5–19 dGH
- Water Temp.
- 18–23℃
PeacefulGroupBreeding: Moderate
Sources: FishBase / Aqueon Goldfish Care Guide
Captive Breeding
Egg-laying
- Clutch size
- 2000〜4000
- Incubation days
- 2〜9 days
Breeding season: Spring to early summer (March–June). Rising water temperature above approximately 18–22°C is the primary spawning trigger. A winter cooling period is considered important to prime the fish for spawning.
Breeding notes
Sarasa Wakin, like all goldfish varieties, is a domesticated form of Carassius auratus and shares the same spawning biology. In captivity, providing spawning mops or floating plants (e.g., Cabomba, Elodea) encourages deposition of adhesive eggs. Hatching duration depends on water temperature and typically spans 2–9 days. Parents should be removed promptly after spawning to prevent egg predation. Gentle aeration and good water quality are considered important for maximizing hatch rates and fry survival.
Breeding requires planning, proper husbandry, and responsibility. These figures are general guidelines.
Morphs (Varieties)
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。
Line-bredEstablished by selective line breeding.
Single tail (wild-type fin)Sarasa (red-and-white)
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.
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: (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
Nomenclature follows global taxonomic authority databases.
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