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Bubble Eye Goldfish
AdvancedDistinctive goldfish with large fluid-filled sacs under eyes. Chinese-bred variety. Very delicate for experienced keepers.
Difficulty
Advanced
Temperature
5〜30℃（適温18〜24℃）
Lifespan
5-10 years
Size
10-15cm
Diet
Goldfish pellets (sinking type)
About
The Bubble Eye is a Chinese goldfish variety distinguished by the large, fluid-filled sacs that hang beneath each eye, wobbling dramatically as the fish swims. These delicate pouches are the breed's defining—and most demanding—feature: once punctured, they cannot be fully restored. All sharp decorations and unprotected filter intakes must be eliminated from the aquarium, and soft or bare substrates are preferred. The Bubble Eye lacks a dorsal fin and swims slowly with impaired vision, making it incompatible with more active or competitive tank mates. It is ideally kept alone or with other Bubble Eyes. A slightly warmer water temperature of 20–26°C is recommended. Due to the high level of care required to protect the eye sacs, Bubble Eye goldfish are considered an intermediate-to-advanced variety, best suited to experienced keepers who appreciate their one-of-a-kind charm.
Basic Info
Origin
China
Lifespan
5-10 years
Size
10-15cm
Temperature
5〜30℃（適温18〜24℃）
Diet
Goldfish pellets (sinking type)
Care Guide
Tank
Simple layout without obstacles
Bubbles
Extreme care not to pop eye sacs
Care Specifications
- pH
- 6–8
- Hardness (GH)
- 5–19 dGH
- Water Temp.
- 18–23℃
PeacefulGroupBreeding: Moderate
Sources: FishBase / Aqueon Goldfish Care Guide
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.
Dorsal-lessFluid-filled eye sacs
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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