Koi are cold blooded, meaning that their metabolism changes based on the temperature of their pond. Experienced koi owners make a few adjustments to their fish’s feeding plans as the water temperature changes with the seasons. Keep in mind that there’s no such thing as one-size-fits-all feeding plan. Water temperatures, water quality, dissolved oxygen levels, and stocking densities should be considered prior to feeding.
Hot Weather
- For water temperatures 64°F and above
- Feed an amount fish will readily consume in 5 minutes
- Feed 2 to 4 times per day with Ultra Balance Premium Maintenance formula or feed 3 to 5 times per day with Ultra Balance Premium Growth formula for optimum growth of young fish
- Reduce feeding if water temperature exceeds 88°F and watch closely for signs of stress
Cold Weather
- For water temperatures below 64°F
- Feed an amount fish will readily consume in 5 minutes
- Feed a highly digestible wheat germ diet such as Ultra Balance Premium Maintenance formula 1 to 2 times per day
- If the water temperature drops below 50°F, we suggest you stop feeding your koi (fasting them) since their metabolism slows down and they only eat what their body requires by grazing on algae
- Introduce food again once the water temperature rises consistently above 50°F
Young Fish
(under 2 years of age)
Water Temperature:
Above 64°F
Growth Formula
Water Temperature:
50°F – 64°F
Maintenance Formula
Water Temperature:
Less than 50°F
Do Not Feed
Older Fish
(over 2 years of age)
Water Temperature:
Above 64°F
Maintenance Formula
Water Temperature:
50°F – 64°F
Maintenance Formula
Water Temperature:
Less than 50°F
Do Not Feed