Nijikawa

Nijikawa is built on koi nutritional science: a comprehensive amino-acid matrix for true growth, plus nutrients that support collagen and develop color from the dermis up. Every formula uses prime-grade, NON-GMO ingredients. Explore Growth, Color Genesis, Four Seasons and Professional below.

Why Nijikawa. Nijikawa is formulated around a complete amino-acid profile for true skeletal and muscle growth, not just water weight, and uses NON-GMO prime-grade ingredients. The Growth formula drives size in tosai and nisai; Color Genesis develops pigment from the dermis up using natural carotenoids; Four Seasons is an all-temperature staple; and Professional is built for serious hobbyists and breeders running high feed volumes.

Nijikawa koi food FAQ

What is Nijikawa koi food?

Nijikawa is a NON-GMO koi diet line — Growth, Color Genesis, Four Seasons, and Professional — built on a full amino-acid matrix for genuine growth and dermal color development.

Which Nijikawa is best for growth?

The Growth formula — high digestible protein for fast, healthy size in young koi during warm water.

Is Nijikawa good for color?

Color Genesis uses natural carotenoids to build hi and sumi; feed in warm months alongside good water quality for best results.

Browse all koi food or compare with JPD.