 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.
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Water Temp. (°F.)
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Feeding Frequency
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Food Type
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Less than 50ºF.
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Do not feed Koi.
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Temperatures at 50° F. of more than one month may require supplemental feedings of low protein and high carbohydrates.
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50-55ºF
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2-3 times a week if Koi are hungry.
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High carbohydrate, low protein, laxative type foods. Wheat germ, Cheerios®, squash, lettuce and brown bread.
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55-59ºF
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4-5 times per week if Koi are hungry.
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Add low protein (25%) pellets along with vegetables. Increase quantities gradually as temperature increases.
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59ºF
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Once per day six days per week.
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Low protein (25%) pellets along with high carbohydrate vegetables and fruit.
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60-65ºF
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Once per day every day.
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Gradually increase protein in pellets (35%) and quantity of pellets. Vary diet with vegetables and fruit.
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65-72ºF
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Once or twice per day.
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Bulk of diet should be 35% protein pellets. Add fruits, vegetables, and plankton for variety.
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72-80ºF
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3 to 4 times per day.
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High protein pellets (35% to 40%) with color enhancers. Add plankton, vegetables, fruits, and shrimp.
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