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Koi Information » Koi Feeding Guide » Koi Feeding Guide


Koi Feeding Guide

A Koi's metabolism functions best at temperatures above 70° F.  High protein foods are difficult to digest when the water falls below  65° F.  

However, Koi still need sufficient carbohydrates for energy when water temperatures are low.  This is particularly true for Koi less than 1 year old. 

Squash, bread, peas, citrus fruits, and watermelon are good sources of carbohydrates. Never overfeed your fish! Koi do not have a stomach.  Feed smaller quantities more frequently for better nutritional absorption.  

Feed only as much as the fish will eat in about 3-5 minutes.  Koi pellets should be fresh and used within three months to prevent oxidation of the food.

Water Temp. (°F.)

Feeding Frequency

Food Type

Less than 50ºF.

Do not feed Koi.

Temperatures at 50° F. of more than one month may require supplemental feedings of low protein and high carbohydrates.

50-55ºF

2-3 times a week if Koi are hungry.

High carbohydrate, low protein, laxative type foods.  Wheat germ, Cheerios®, squash, lettuce and brown bread.

55-59ºF

4-5 times per week if Koi are hungry.

Add low protein (25%) pellets along with vegetables.  Increase quantities gradually as temperature increases.

59ºF

Once per day six days per week.

Low protein (25%) pellets along with high carbohydrate vegetables and fruit.

60-65ºF

Once per day every day.

Gradually increase protein in pellets (35%) and quantity of pellets.  Vary diet with vegetables and fruit.

65-72ºF

Once or twice per day.

Bulk of diet should be 35% protein pellets.  Add fruits, vegetables, and plankton for variety.

72-80ºF

3 to 4 times per day.

High protein pellets (35% to 40%) with color enhancers.  Add plankton, vegetables, fruits, and shrimp.


Koi & Pond Tip of the Day
February 5th, 2012
Ponds with vinyl liners or of fiber glass construction tend to show a decrease in alkalinity over time and may need supplements to maintain an acceptable level. Raise alkalinity by adding Calcium Carbonate, concrete blocks, oyster shells, limestone, or even egg shells.
Tips by » Koi Clubs USA