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Carassius auratus
A bubble eye in calico dress, mottled in red, black and white. Mosaic transparent scales add a pale blue cast, while the dorsal-less body and the sacs below the eyes are unchanged.
The calico bubble eye is a colour line that carries calico patterning on the bubble eye. Calico refers to a complex mottling of red, black and white; the pattern entered many breeds through crosses with the calico telescope, which carries mosaic transparent scales. The build is that of an ordinary bubble eye: no dorsal fin, upward-facing eyes, and a balloon-like sac on each side. The sacs hold lymph and never return symmetrically once torn. The amount of pale blue depends on how the transparent scales fall, so no two fish are marked alike. Swimming ability is equally limited, so avoid strong currents and exposed filter intakes. Patterning shifts as the fish grows, with the black receding and the red settling over several years.
Source: Wikipedia (CC BY-SA 4.0)
The ideal temperature for the Calico Bubble Eye is 15〜28℃.
Origin
China (developed variety)
Temperature
15〜28℃
Prepared foods, frozen bloodworms
Light close to daylight shows the calico and its pale blue to best effect. Strong light is unnecessary; set brightness for viewing from above.
Sources: FishBase (Carassius auratus) / Keihan Nishikigoi Center: goldfish water management / Kingyo Hitosuji: Bubble Eye
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.
Sources: CITES Appendices (species not listed) / FishBase (Carassius auratus)
Regulations may change. Always verify the latest information with the relevant authorities.
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Keep flow gentle and cover intakes with sponge. Leave out sharp ornaments that could snag the sacs, and choose rounded substrate.
Combine with equally slow breeds such as other bubble eyes or celestial eyes. Fast movers like wakin types or butterfly tails will outcompete it for food.
A torn sac does not regrow. Always move the fish out of the tank before changing water, and steady it with a hand over the net.
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The ideal temperature for Calico Bubble Eye is 15〜28℃. Avoid sudden temperature changes and maintain a stable environment.
Calico Bubble Eye feeds on: Prepared foods, frozen bloodworms. Aim for a balanced diet with appropriate feeding frequency.
The price of Calico Bubble Eye varies significantly depending on variety, size, and individual quality. Check our market price page for the latest pricing information.
Last updated: September 16, 2026