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Hamanishiki
IntermediateA goldfish combining pearl scales with head growth. Popular breed with pearl shimmer and luxurious wen.
Difficulty
Intermediate
Temperature
5〜30℃
Lifespan
8-12 years
Size
10-18cm
Diet
Pellets, Bloodworms
About
The Crown Pearlscale (Gaotou Zhenzhu or High-Head Pearlscale) combines the lustrous, dome-shaped raised scales of the Pearlscale with a wen (head growth) similar to that of the Oranda, resulting in an unusually luxurious-looking goldfish. Both the pearl-like shimmer of the scales and the fleshy head crown contribute to the breed's ornate character. Like all Pearlscale varieties, the Crown Pearlscale has a near-spherical body, double fantail fins, and is highly susceptible to swim bladder disorder (buoyancy problems). The wen must be monitored for bacterial infection, and the pearlescent scales should be protected from physical damage—once flattened, they cannot be restored. Tank size of 40 liters or more with low-flow filtration is recommended.
Lifespan of the Hamanishiki
The Hamanishiki lives 8-12 years.
Size of the Hamanishiki
The Hamanishiki grows to 10-18cm.
Temperature & humidity for the Hamanishiki
The ideal water temperature for the Hamanishiki is 18〜23℃.
Small amounts of easily digestible sinking food, stable water temperature of 18–25°C, and minimal water flow are essential for maintaining health.
Basic Info
Origin
China
Lifespan
8-12 years
Size
10-18cm
Care Specifications
- pH
- 6–8
- Hardness (GH)
- 5–19 dGH
- Water Temp.
- 18–23℃
PeacefulGroupBreeding: Moderate
Sources: FishBase / Aqueon Goldfish Care Guide
Morphs (Varieties)
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.
Line-bredEstablished by selective line breeding.
Pearlscale (raised calcified scales)Fantail (paired caudal)
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.
References & Sources
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.
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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