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The Black Copper Ranchu is a bold and exotic fancy goldfish variety, showcasing a deep black base overlaid with metallic copper scales that shimmer beautifully under light.
This rare coloration gives the Ranchu a regal and dramatic appearance, making it an impressive centerpiece for any aquarium or ornamental pond.
Our Grower Pick selection ensures each fish is hand-selected for premium color balance, scale quality, and overall health.
Photos shown are representative—you will receive a Black Copper Ranchu of similar quality, pattern, and size.
| Scientific Name | Carassius auratus |
|---|---|
| Origin | Selective breeding in China & Thailand |
| Color Pattern | Deep black base with metallic copper highlights |
| Type | Fancy Goldfish – Ranchu (no dorsal fin) |
| Size | Juveniles: 2.5–3.5"; adults: ~5–7" |
| Temperament | Peaceful; ideal with other fancy goldfish |
| Tank Recommendation | Minimum 20 gallons per fish; larger tanks or ponds preferred |
| Water Temperature | 65–75°F (18–24°C) |
| pH | 6.8–7.6 |
| Hardness | 5–19 dGH |
| Diet | High-quality goldfish pellets, blanched vegetables, frozen/live treats |
| Tankmates | Slow-moving fancy goldfish only |