Red Fantail Goldfish (5 cm) – a vibrant, graceful goldfish with flowing fins and a bright red body. Perfect for beginner-friendly freshwater tanks and ponds.

The Red Fantail Goldfish (Carassius auratus) is a classic and popular ornamental fish admired for its brilliant red coloration and elegant, flowing fins. At 5 cm, these juveniles add a splash of vivid color and gentle movement to freshwater aquariums and garden ponds alike. Known for their peaceful temperament and hardiness, Red Fantails are a great choice for both beginner and experienced aquarists.

Their distinctive double tail fin and rounded body shape give them a graceful swimming style that captivates hobbyists. With proper care, Red Fantails can live for many years, becoming a beautiful long-term companion in your aquatic setup.

✅ Key Features

• Size: Juveniles around 5 cm; adults typically reach 15–20 cm

• Temperament: Peaceful and social

• Care Level: Easy, beginner-friendly

• Lifespan: 8–10 years with good care

• Special Trait: Bright red coloration with flowing fantail fins

Care Guide for Red Fantail Goldfish

✅ Tank Requirements

• Minimum Tank Size: 75 liters (20 gallons) for one or two fish

• Aquascape: Smooth substrate, gentle plants, and open swimming space

• Filtration: Efficient filtration to handle goldfish waste

• Lighting: Moderate lighting to enhance red coloration

• Aeration: Recommended to maintain oxygen levels

✅ Water Parameters

• Temperature: 18°C – 24°C (64°F – 75°F)

• pH Level: 6.5 – 8.0

• Water Hardness: Soft to moderately hard

• Maintenance: Weekly 25% water changes to keep water clean and healthy

Goldfish produce significant waste, so maintaining water quality is critical for their health.

✅ Feeding Habits

Red Fantails are omnivorous and eager eaters who thrive on a balanced diet.

• Recommended Diet:

  • High-quality goldfish pellets or flakes

  • Fresh vegetables (peas, lettuce, zucchini)

  • Occasional treats like bloodworms or brine shrimp

Feed small amounts 2–3 times daily, avoiding overfeeding to prevent water quality issues.

✅ Tank Mates

Red Fantails are peaceful and do well with similarly sized, non-aggressive fish.

Compatible Tank Mates:

• Other fancy goldfish varieties (Orandas, Ryukins)

• White Cloud Mountain Minnows

• Zebra Danios (in cooler water)

Avoid aggressive or fin-nipping fish that may stress the fantail.

✅ Behavior & Personality

• Behavior: Calm, social, and often interact with their keepers

• Activity: Active swimmers, especially during feeding

• Personality: Friendly and easy to handle

Why Choose Red Fantail Goldfish?

• Bright red color adds vibrant beauty to any tank or pond

• Peaceful and hardy, suitable for beginners

• Graceful swimming with distinctive fantail fins

✅ Ideal for freshwater community tanks and outdoor ponds
✅ A classic, attractive goldfish for any fish enthusiast