what temperature should a koi fish tank be
When the temperatures in your koi pond or tank are between 52 and 60 degrees Fahrenheit, you will want to feed your koi an easy to digest food such as one made of wheat germ.You need to change his diet because his digestive system will not be moving very well.upiterimages/Photos.com/Getty Images. As a koi owner, it is crucial that you keep your koi's tank or pond at a reasonable temperature. Koi rely on the water temperature to assist with their digestive process and cannot digest food if the water gets too cold.