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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.