Koi Size/Grade:5-6" adults should be removed to

adults should be removed to prevent them from consuming the eggs

Adults typically grow to a size of 4 to 5 inches (10 to 12 centimeters)

gentle nature

the male guards the eggs and fry until they become free-swimming

and even koi-like patterns with vibrant orange and black markings

Koi Size/Grade:5-6" adults should be removed toThe Koi, scientifically known as Cyprinus rubrofuscus, is a domesticated variety of the Amur carp selectively bred for ornamental purposes. Originally developed in Japan, Koi are now beloved worldwide for their vibrant colors, graceful movement, and symbolic associations with prosperity and perseverance. They are best suited for outdoor ponds but can be housed in very large aquariums with proper care. Adult Koi can reach impressive sizes, often