Our complete line of Dainichi Koi Food
Dainichi All Season

Dainichi All Season

Dainichi All Season is an excellent year-round source of easily assimilated marine and vegetable proteins. The generous portion of marine proteins promotes rapid growth, while the high vegetable content...(click on product image for more details)
Dainichi Growth Plus

Dainichi Growth Plus

Dainchi GROWTH PLUS is Formulated with unprecedented amounts of Antarctic krill, shrimp and white fish meal, this formula's main objective is to produce a maximum growth and superior body...(click on product image for more details)
Dainichi Premium

Dainichi Premium

PREMIUM is our over-all most popular koi food. Ideal food for keeping all koi in show quality condition, this high performance formula provides your fish with a perfect balance of...(click on product image for more details)

Dainichi Koi Food

Dainichi Koi Food

What do koi eat? How much should I feed my Fish?


For more than 30 years, Minoru Mano of Dainichi Yorijo perfected the food he fed his fish. Created using his recipe and Inochi Inc’s research and technology, Dainichi Fish Food set out to provide breeders and collectors worldwide with a superior quality food. Manufactured to his exacting specifications, this is the same recipe that enabled Manosan to produce more grand champions than all the other Koi breeders in the world—combined. We are confident that Dainichi Fish Food is the best food you can feed your fish, and we would like to tell you why!

To begin with, we use only the finest, all-natural, ingredients in our food. There are no harmful chemicals or fillers that may cause negative side effects such as kidney disease, cancer and excess fat accumulation. The high protein ingredients in Dainichi Fish Food are meticulously refined to ensure easy digestion and maximum assimilation. (When fish more completely digest their food, there is less solid and dissolved waste in the water—an added benefit!) Many hobbyists also notice that when they feed their fish Dainichi, they tend to eat less and put on more bulk muscle. We attribute this to the high percentage of fresh, high quality marine proteins and low ash content.

NOW All Dainichi fish foods contain calcium montmorillonite clay. This bentonite clay contains more than 60 mineral compounds and has been proven to be immensely helpful in enhancing digestion and growth, as well as neutralizing metabolic toxins. In an artificial environment such as a fish tank or pond, the clay helps return minerals to the water and stabilizes its chemical make-up. In this way, the water more closely resembles the natural habitat of koi.

What's Special About Dainichi Food...

1) Using an exclusive process, the food is encapsulated with a special vitamin and mineral coating after the cooking phase thus ensuring that heat sensitive ingredients are absorbed into the pellet without being exposed to heat, thereby retaining their potency. Why is this so important? Fish nutritionists have shown that the fish's immune system lacks long term memory. The extra potency of these ingredients helps your koi can fight off bacterial and viral infections, repair surface damage and increase luster and sheen.

2) The special vitamins and digestive enzymes Dainichi supplements their food with are essential in boosting the fish's immune system response and providing a degree of digestion un-attainable in conventionally produced koi food.

3) The quality standards to which Dainichi Fish Foods are held to, are the highest in the world. The formulations originated at the the most elite level of koi breeding in Niigata, Japan, and it is with great pride that we offer koi hobbyists and connoisseurs the exact same foods used each year by the most successful breeders of Niigata.

All the formulas are coated with a special vitamin and mineral coating after the extrusion process to assure optimum nutritional potency. This cold process ensures that ingredients which would normally be denatured, or even totally destroyed, by exposure to heat are kept at their full potency. Virtually everyone knows that vitamins and digestive enzymes should not be exposed to heat, but only Dainichi Fish Food makes this fact a reality. Fully active vitamins and color agents do wonders to the koi's appearance and health. Active digestive enzymes and no fillers promote digestion rates up to 90% --leaving a cleaner and healthier fish tank. This is especially important in cases where the koi are very large or crowded. The addition of the montmorillonite clay provides a unique complex of minerals not found in any mineral pre-mix. Clinical research, as well as tests on the consumer level, reveal montmorillonite clay to be an invaluable aid in nurturing growth and health of all aquatic animals.

In comparison with other food brands, Dainichi foods are much higher in protein content. This is due to the use of high protein ingredients like spirulina (52-62%) and krill (62%),as well as the abstinence from using low-grade fillers of any kind. These foods are based on highest quality marine proteins rather than grains. There is no: corn, alfalfa or excessive starch in the formulas. Likewise, there is NO blood meal or any ruminant animal matter in the foods. All of the ingredients are of the highest and freshest quality. This yields a very nutritious food that is high in protein but easily digested, by even the most delicate fish species.