Description
Scientific Name: Cyprinus carpio
Common Name: Shiro Japanese Koi
Adult Size: 12–24 inches (30–60 cm), though can exceed 36 inches (91 cm) in the wild
Life Expectancy: 20–30 years, sometimes longer in optimal conditions
Habitat: Freshwater lakes, rivers, ponds, and reservoirs with slow-moving or still water
Tank Requirements
Minimum Tank Size: 100 gallons for juveniles; 300+ gallons or ponds for adults
Ideal Temperature: 65–75°F (18–24°C)
pH Range: 6.5–8.0
Water Hardness: 5–19 dGH
Temperament: Generally peaceful, but may uproot plants and disturb substrate
Diet & Nutrition
Omnivorous: Yes
Eats plant matter, insects, crustaceans, and commercial fish food
Can be fed pellets, vegetables (like peas or lettuce), and live/frozen foods like bloodworms
