🧬 Origins and Classification
Scientific Name: Carassius auratus (Fantail Oranda variety)
Family: Cyprinidae
The Fantail Oranda / Goldfish is a classic fancy goldfish variety known for its rounded body, flowing double tail, and the characteristic “wen” or head growth typical of Orandas. This fish originated from selective breeding in China and Japan, resulting in a beautiful and gentle goldfish that has become a favorite among hobbyists. Because of its graceful swimming style and elegant appearance, the Fantail Oranda / Goldfish adds charm to any coldwater aquarium.
🎨 Appearance
The Fantail Oranda / Goldfish features a combination of beautiful traits from both fantail and Oranda lines.
Color & Features:
- Available in red, orange, calico, white, black, or mixed patterns
- Rounded body with a soft, flowing double tail
- Distinct wen (head cap) that develops with age
- Smooth, shimmering scales that catch the light
- Slow, elegant swimming movement
Size:
- Average body length: 6–8 inches
- Full height (with fins): up to 10–12 inches
- Lifespan: 10–15 years with excellent care
🏡 Tank Requirements
Tank Size: Minimum 40 gallons for one Fantail Oranda / Goldfish; add 20 more gallons per additional goldfish.
Water Parameters
- Temperature: 65–75°F (18–24°C)
- pH: 6.8–7.8
- Hardness: 5–15 dGH
Environment Setup
To ensure healthy growth and prevent injury, provide:
- Smooth décor without sharp edges
- Fine gravel or sand substrate
- Plenty of open swimming space
- Low-to-moderate water flow
- Strong filtration to manage waste
Live plants such as Anubias, Java Fern, and Water Sprite work well with goldfish.
🍽️ Diet
Type: Omnivore
Food Options:
- High-quality sinking goldfish pellets
- Frozen or live foods (bloodworms, brine shrimp, daphnia)
- Soft vegetables (peas, spinach, lettuce)
Feeding Tip:
Avoid floating pellets, as they may cause swim bladder issues. Offer small meals 2–3 times daily.
🤝 Behavior and Compatibility
The Fantail Oranda / Goldfish is peaceful, friendly, and slow-moving.
Ideal Tank Mates:
- Other fancy goldfish (Oranda, Ryukin, Telescope, Lionhead)
- Snails
- Coldwater-safe, non-nippy species
Avoid:
- Fast slim-bodied goldfish like Comets and Shubunkins
- Aggressive or fin-nipping fish
Fancy goldfish do best with other fancies that share the same swimming speed.
💡 Care Notes
They requires clean water and regular maintenance. Weekly 30–40% water changes help support their health and keep the wen (head growth) clean. Monitor the wen for signs of overgrowth or infection. A calm environment and gentle filtration will allow the fish to show its full beauty.
Beautiful, peaceful, and charming, the Fantail Oranda / Goldfish is a perfect choice for anyone looking to add a graceful fancy goldfish to their aquarium.