Koi Food and Feeders

Choose the right Koi food

Choosing the right food for your Koi is one on the most important decisions you must make. Pond Pets USA is committed to offering a wide selection of medicated, color enhancing, growth stimulating and sustaining foods.

The feeding pattern, and thus the growth rate, of Koi, depends on many factors, such as water temperature, water quality, stocking density and genetic background Koi feed most actively at temperatures in excess of 15c(59F), thus sexually immature fish can grow rapidly during the summer months when the temperature is warmer.

Once Koi are mature, their growth rate slows considerably; in sexually mature fish, most of the food eaten is utilized in producing eggs or sperm in preparation for breeding. However, unlike many other vertebrates, fish continue to grow throughout their lives and it is easy for pampered Koi to reproduce and continue to grow because of their artificially high feeding rates.

The cycle of rapid growth in summer and retarded growth in winter produces rings on the fish's scales (much like the growth rings of a tree) and a Koi's age can be determined by counting these rings. Some Koi-keepers, however, who heat their pools in the winter, continue to feed their Koi throughout the year. If a Koi has continued to feed during winter its rings will not be clearly defined and it will, therefore, be difficult to age.

Water Temp
in °(C)
Feeding QuantityFood Type
less than 10Do not feed KoiTemps. at 10° C of more than one month may require supplemental feedings of low protein high carbohydrate.
10-132-3 times a week
(if Koi are hungry)
High carbohydrate, low protein, laxative type foods.
Wheat germ, squash, lettuce & brown bread.
13-154-5 times per week
(if Koi are hungry)
Add low protein (25%) pellets along with vegetables.
Increase quantities gradually as temperature. increases.
15Once per day six days a weekLow protein (25%) pellets along with high carbohydrate vegetables and fruit.
15-18Once or twice per day everydayGradually increase protein in pellets (35%) and quantity of pellets. Vary the diet with vegetables and fruits.
18-22Once or twice per dayBulk of diet should be 35% protein pellets.
Add fruits, vegetables, and plankton for variety.
22-263-4 times a dayHigh protein pellets (35% to 40%) with color enhancers. Add plankton, vegetables, fruits and shrimp.
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