- Body Color: Rich, velvety chocolate brown throughout the body and fins.
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Distinctive Features:
- Prominent, fleshy head growth called a "wen" that covers the top of the head.
- Deep, rounded body with flowing fins that give it a graceful swimming motion.
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Size:
- Current: Typically 5–8 cm (2–3 inches).
- Adult: Can grow up to 15–20 cm (6–8 inches) with proper care.
Behavior:
- Temperament: Peaceful and social, well-suited for community tanks with other fancy goldfish varieties.
- Activity: Active swimmer but prefers slower-moving environments due to its rounded body and delicate fins.
Aquarium Requirements:
- Tank Size: Minimum 80 liters (20 gallons) per fish, with additional space for each additional fish.
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Water Conditions:
- Temperature: 18–24°C (65–75°F)
- pH: 6.5–7.5
- Hardness: Moderate (5–20 dGH)
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Aquascape:
- Smooth substrate to avoid damaging fins or wen.
- Decorations and plants should be safe, without sharp edges.
- Open swimming areas are essential.
- Filtration: Strong filtration to handle their high waste production. Use gentle water flow to accommodate their slower swimming ability.
Diet:
- Type: Omnivorous.
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Recommended Foods:
- High-quality goldfish pellets or flakes.
- Vegetables like peas, spinach, or zucchini (blanched).
- Occasional treats like bloodworms or brine shrimp (frozen or live).
- Avoid overfeeding to prevent swim bladder issues.
Care Notes:
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Maintenance:
- Perform weekly water changes (25–50%) to maintain pristine water quality.
- Monitor ammonia and nitrate levels, as fancy goldfish are sensitive to poor water conditions.
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Health Concerns:
- Keep an eye on the wen for infections or debris buildup.
- Watch for swim bladder issues, which are common in fancy goldfish due to their body shape.
Compatibility:
- Best housed with other fancy goldfish varieties like Ryukins, Ranchus, or Pearlscales. Avoid fast-swimming or fin-nipping tankmates.
Lifespan:
- With proper care, Chocolate Orandas can live up to 10–15 years, making them a long-term commitment.
The Chocolate Oranda is a captivating addition to any aquarium, prized for its unique coloration and charming personality. Their gentle nature and elegant appearance make them a favorite among goldfish enthusiasts.