
Source: Wikimedia Commons
Carassius auratus
A butterfly tail in calico dress, mottled in red, black and white. Mosaic transparent scales lend a pale blue cast, and from above the broadly spread tail reads like a butterfly's wings.
The calico butterfly tail is the colour line that carries calico patterning on the butterfly tail. Calico denotes a complex mottling of red, black and white, a pattern that entered many breeds through crosses with the calico telescope and its mosaic transparent scales. Because the amount of pale blue depends on how those scales fall, no two fish are marked alike. The build is that of an ordinary butterfly tail: shallow clefts and broadly opened lobes, with protruding telescope eyes on most individuals. Colour fades readily, and the loss of black changes the look of the pattern considerably. Strong aeration disrupts the skirt-like sweep of its swimming and saps its stamina, so a still environment is the norm.
Source: Wikipedia (CC BY-SA 4.0)
The Calico Butterfly Tail lives 10-15 years.
The Calico Butterfly Tail grows to 12-20cm.
The ideal temperature for the Calico Butterfly Tail is 15〜28℃.
Origin
China (introduced to Japan in the late 1970s)
Lifespan
10-15 years
Size
Sources: FishBase (Carassius auratus) / Keihan Nishikigoi Center: goldfish water management / Kingyo Hitosuji: Panda Butterfly Tail
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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12-20cm
Temperature
15〜28℃
Prepared foods, frozen bloodworms, colour-enhancing food
The breed is enjoyed from above for the spread of its tail, so provide enough light to show the tail outline from the surface. Avoid overly strong light to hold the black, and pair this with colour-enhancing food.
A still tank or a water bowl is recommended so the tail is not damaged. Strong aeration disturbs its swimming and drains its stamina, so keep aeration to a minimum.
It does not suit fast-swimming companions; the usual pairing is with equally slow Chinese breeds such as the celestial eye or bubble eye. Choose tank mates that will not peck its protruding eyes.
How the black recedes changes as the fish grows, so the finished pattern cannot be read from a juvenile. Feed colour-enhancing food and keep water quality steady to slow the shift.
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Calico Butterfly Tail is 15〜28℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Calico Butterfly Tail is 10-15 years. With proper care and nutrition, they can live a long and healthy life.
Calico Butterfly Tail typically reaches 12-20cm as an adult. Size may vary depending on care conditions and individual genetics.
Calico Butterfly Tail feeds on: Prepared foods, frozen bloodworms, colour-enhancing food. Aim for a balanced diet with appropriate feeding frequency.
The price of Calico Butterfly Tail varies significantly depending on variety, size, and individual quality. Check our market price page for the latest pricing information.
Last updated: September 17, 2026