SF Bay Area Koi Club

Organization of Pond and Koi Keepers




If your water temp goes above 80 degrees.

07/22/2015 7:05 AM | Anonymous member (Administrator)

Here are a few simple charts regarding feeding and water temperature. When your water gets really warm, I suggest cutting back on a food on the hottest day and lots of aeration.  Remember, warm water is close to hot water and hot water is close to boiling.  Aeration assists in cooling the water.


Water temperature can dictate how and when you feed your fish. Careful consideration should be given to the condition of the environment as well as the activity level of your pets. Also consider your own knowledge and experience with your fish!








Koi are most active in this temperature range. You can feed as often as you like any of our color enhancing, growth or staple diets. Feeding smaller amounts more often can actually increase weight and girth more rapidly. Always monitor your water quality and the activity level when deciding how much to feed. Always avoid feeding within one hour of sunrise or sunset.

Carefully monitor your pets activity level in this temperature range. As the water temperature drops so does your koi's digestive capacity. Care should be taken to avoid over-feeding and offering food during periods of inactivity. Always feed during the warmest part of the day if your water temperature is not stable.

When your water temperature is in this range you should monitor your koi's activity level carefully and avoid feeding if you pets do not readily eat. Use only easily digested diets like Hikari Wheat Germ. Try to feed between 10:00 am and 2:00 pm if possible.

When the water temperature is in this range, technically you may stop feeding until spring. If your koi are active and you want you can feed an amount they will consume within a minute or so, but never more. Always try to feed between 10:00 am and 2:00 pm.i

Your koi should be in their hibernation mode now and no feeding is necessary.



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