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Short-tailed ryukin type. Round body with short tail creates cute balance. Even poorer swimmer than regular ryukin.
The Short-tail Ryukin retains the distinctive high shoulder hump and deep, rounded body of the standard Ryukin while featuring significantly shorter tail fins, creating a compact, chubby silhouette that many enthusiasts find particularly endearing. The combination of an exaggerated round body and abbreviated tail makes this variety an even slower swimmer than the regular Ryukin, so gentle filtration with minimal water current is essential. Body depth and roundness are key criteria for show quality. Like all Ryukin types, Short-tail Ryukin are prone to swim bladder disorders due to their compressed body shape, making it important to feed small amounts of easily digestible food and include occasional fasting days. They are best kept with other slow-swimming varieties in tanks of 45 liters or more.
The Short-tail Ryukin lives 10-15 years.
The Short-tail Ryukin grows to 12-18cm.
The ideal temperature for the Short-tail Ryukin is 15〜25℃.
Origin
Japan
Lifespan
10-15 years
Size
12-18cm
Temperature
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
15〜25℃
Goldfish pellets
Keep in a tank of 45L or more. Its body catches water resistance and it swims slowly, so set the flow on the gentle side.
Keep the water at 15-25°C, ideally 18-25°C. Avoid sudden temperature changes and maintain clean water with one or two changes a week.
Prone to swim bladder disorder, so feed easily digested sinking food in small portions. A fasting day also helps prevention.
Even slower than a regular ryukin and gentle in temperament, it suits mixing with other slow-swimming varieties.
High swim bladder disorder risk — watch digestion
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Short-tail Ryukin is 15〜25℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Short-tail Ryukin is 10-15 years. With proper care and nutrition, they can live a long and healthy life.
Short-tail Ryukin typically reaches 12-18cm as an adult. Size may vary depending on care conditions and individual genetics.
Short-tail Ryukin feeds on: Goldfish pellets. Aim for a balanced diet with appropriate feeding frequency.
The price of Short-tail Ryukin varies significantly depending on variety, size, and individual quality. Check our market price page for the latest pricing information.
Last updated: August 31, 2026