TheCalico 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

• Distinctive calico colouration: a mottled mix of red, white, blue, black, and orange

• Double, fan-shaped caudal (tail) fin

• More streamlined body than other fancy goldfish

• Typically grows to 15 cm in length

• Long lifespan of 1015 years with proper care

• Peaceful and social temperament

The Best Aquarium Size for Calico Fantail

A single Calico Fantail requires a minimum of 75 litres, with an additional 3540 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:

• Ryukin Goldfish

• Oranda Goldfish

• Ranchu Goldfish

• Pearlscale Goldfish

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:

• High-quality sinking pellets or gel food

• Blanched vegetables such as spinach, zucchini, or peas

• Occasional protein treats like bloodworms or brine shrimp

Feed small portions 23 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 (810 hours per day) supports plant growth and enhances coloration without stressing the fish.

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Aquarium Heating

Maintain a stable temperature of 2023C. 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.