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Originated in Yamagata. Ryukin body with wakin-like long tail. Hardy, suitable for outdoor ponds, and strong swimmer.
The Tamasaba, also known as Sabao, is a rare Japanese goldfish variety originating from Niigata and Yamagata Prefectures in northern Japan. It is distinguished by combining a round, Ryukin-like body with a long, flowing single (mackerel-style) tail fin—an unusual pairing that creates a unique visual balance. The most common coloration is red-and-white sarasa; other color variations are uncommon. It is active and hearty with a strong appetite. Somewhat uncommon outside its native region, the Tamasaba is cherished in the Tohoku region as a local heritage breed.
Source: Wikipedia (CC BY-SA 4.0)
The Tamasaba lives 10-15 years.
The Tamasaba grows to 15-25cm.
The ideal water temperature for the Tamasaba is 18〜23℃.
The Tamasaba is exceptionally cold-hardy, thriving across a wide temperature range of 5–30°C, which makes it one of the few fancy goldfish varieties truly suited to unheated outdoor pond keeping in cold climates.
Origin
Japan (Niigata and Yamagata Prefectures)
Lifespan
10-15 years
Size
Sources: FishBase / Aqueon Goldfish Care Guide
Goldfish varieties are line-bred for body shape, tail type, scale type, and coloration. Traits such as protruding eyes, transparent scales (calico), and albinism are single-locus traits.
Sources: Wikipedia - Goldfish (Varieties) / Goldfish — Wikipedia (Japanese edition, varieties)
A curated selection of notable morphs. Inheritance modes are a breeding-planning guide; actual appearance varies with combos.
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
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.
Find listings for this species
15-25cm
Temperature
5〜30℃
Goldfish pellets
Suited to a tank of 60L or more or an outdoor pond, where it grows freely. Adults reach about 15-25cm.
Extremely cold-hardy and adaptable to 5-30°C, it can be kept year-round in an unheated outdoor pond.
A hearty eater of goldfish pellets. Watch for water fouling from overfeeding and change water regularly.
A strong, active swimmer with a big appetite, so watch for food competition when mixed with other varieties.
Very hardy for a round-bodied goldfish and easy to keep, suiting beginners. It withstands even northern winters.
Mainly distributed in Tohoku region — somewhat hard to find
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 Tamasaba is 18〜23℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Tamasaba is 10-15 years. With proper care and nutrition, they can live a long and healthy life.
Tamasaba typically reaches 15-25cm as an adult. Size may vary depending on care conditions and individual genetics.
Tamasaba feeds on: Goldfish pellets. Aim for a balanced diet with appropriate feeding frequency.
The price of Tamasaba varies significantly depending on variety, size, and individual quality. Check our market price page for the latest pricing information.
Last updated: August 31, 2026