Description
The Calico Fantail goldfish is a popular fancy variety of Carassius auratus, valued for its vivid, speckled coloration and classic double-tail form. This fish features a streamlined body, unlike more rounded fancy goldfish, making it hardier and slightly more agile while still maintaining ornamental appeal. Its adaptability and peaceful temperament make it a favourite among beginner and experienced aquarists alike.
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Features of a Calico Fantail
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Distinctive calico colouration: a mottled mix of red, white, blue, black, and orange
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Double, fan-shaped caudal (tail) fin
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More streamlined body than other fancy goldfish
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Typically grows to 15 cm in length
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Long lifespan of 10–15 years with proper care
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Peaceful and social temperament
The Best Aquarium Size for Calico Fantail
A single Calico Fantail requires a minimum of 75 litres, with an additional 35–40 litres for each extra goldfish. A horizontal tank is ideal to allow ample swimming space and oxygen exchange. Avoid tall or narrow tanks that limit movement and water surface area.
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Tank Mate Compatibility for Calico Fantail
Suitable tank mates include other peaceful fancy goldfish that share similar swimming speeds:
Avoid fast, slim-bodied goldfish like Commons or Comets, as well as aggressive or fin-nipping tropical species.
Diet for Calico Fantail
Calico Fantails are omnivores and thrive on a balanced diet of:
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High-quality sinking pellets or gel food
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Blanched vegetables such as spinach, zucchini, or peas
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Occasional protein treats like bloodworms or brine shrimp
Feed small portions 2–3 times daily to prevent overfeeding and swim bladder issues.
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Aquarium Setup for Calico Fantail
Aquarium Filtration
Use a reliable filter rated for double the tank size. Aim for moderate flow with strong mechanical and biological filtration to handle high waste levels.
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Aquarium Plants
Use hardy plants such as Anubias, Java fern, or hornwort. Anchor plants well or opt for floating varieties to avoid uprooting.
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Aquarium Lighting
Moderate lighting (8–10 hours per day) supports plant growth and enhances coloration without stressing the fish.
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Aquarium Heating
Maintain a stable temperature of 20–23°C. While Fantails tolerate cooler water, consistency is essential for long-term health.
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Aquarium Substrate
Use smooth gravel or fine sand to protect delicate fins and avoid ingestion hazards.
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Aquarium Decorations
Decor should be smooth and free of sharp edges. Provide open swimming space alongside sheltered areas to reduce stress.
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Properly cared for, the Calico Fantail adds vibrant colour and graceful movement to any freshwater aquarium.
