Platinum Koi, also known as Purachina Ogon, are elegant, solid metallic white koi prized for their glowing, mirror-like sheen. Their simplicity emphasizes body shape, skin quality, and purity, making them a centerpiece in any pond.
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Platinum Koi, also known as Purachina Ogon, are elegant, solid metallic white koi prized for their glowing, mirror-like sheen. Their simplicity emphasizes body shape, skin quality, and purity, making them a centerpiece in any pond.
Solid metallic white body with a glowing platinum sheen. No markings or patterns. Judges evaluate them based on purity of color, brightness, and body conformation. Variants may have scaleless or sparkling features.
25–35 years, with some living over 40 years in excellent conditions
Omnivorous – thrives on high-quality koi pellets, vegetables (peas, lettuce, spinach), fruits (orange, watermelon), and protein sources like shrimp, worms, and silkworm pupae.
Platinum Koi are timeless and elegant, perfect for collectors who want a luminous centerpiece. Their minimalism emphasizes pond aesthetics and water quality. With good care, they become lifelong companions and a highlight in koi competitions.
Moderate – hardy but require pristine water to maintain their white brilliance.
500 gallons for juveniles, but adults require large ponds (1000+ gallons recommended)
7.0 to 8.0
5–15 dGH
59–77°F (15–25°C), tolerates a wide range with seasonal adaptation
24–36 inches, occasionally larger in big ponds
Compatible with all koi varieties, large goldfish, and other peaceful pond fish. Avoid aggressive or territorial species.
Aggressive or fin-nipping species. Best avoided with overly territorial pond fish.
Cyprinus carpio
Cyprinidae
Japan – developed from Ogon koi to emphasize metallic white coloration
Highly social, thrive in groups of koi. Peaceful community pond fish.
Feed 2–3 times per day during warm months. Reduce feeding in cooler months, and stop below 50°F (10°C). Offer pellets, vegetables, fruits, and occasional protein treats for best health and sheen.
Egg scatterers – spawn in warmer water (68–75°F). Eggs stick to plants or spawning mops. Parents should be removed to protect the eggs.
Provide a large spawning pond with spawning brushes or aquatic plants. Eggs hatch in 3–7 days depending on water temperature. Fry should be fed infusoria, then baby brine shrimp as they grow. Parents must be separated post-spawning.
pH: 7.0–8.0, Temperature: 59–77°F (15–25°C), Hardness: 5–15 dGH, Ammonia/Nitrite: 0 ppm, Nitrate: <40 ppm. High oxygenation is essential.
Ich, fin rot, parasites (flukes, anchor worms), bacterial ulcers, fungal infections, and Koi Herpesvirus (KHV). White skin shows imperfections easily, making early detection crucial.
Peaceful, social, and highly interactive. They are bold swimmers and often approach their keepers for food.
Active, curious, and bold. They are peaceful with other koi and goldfish, often the first to come up for food. Their bright color makes them highly visible in ponds.
Platinum Koi, part of the Hikarimuji group, are one of the most striking koi varieties. Their beauty lies in their solid, reflective white sheen without patterns, highlighting the elegance of their body shape and skin luster. They symbolize purity, wealth, and refinement in Japanese culture and are a must-have for serious koi keepers. They are hardy, grow large, and thrive in well-maintained ponds with high oxygen levels and good filtration. Variants include Doitsu Platinum (scale-less), Gin Rin Platinum (sparkling scales), and Butterfly Platinum Koi (long fins).