A Koi’s growth rate is directly related to how they are fed. Their feeding pattern in turn, is dependent on a lot of factors, including water temperature and quality, number of fish in the pond and the genetic background of the fish.
They need food that contains various elements such as proteins, fats, carbohydrates, vitamins and minerals. These elements are essential for all animals to maintain healthy bodies, grow and reproduce.
The type of food and the amount to feed them will depend on the size of the Koi. The smaller fish need food in a size they can eat, while the larger fish will do just fine with larger pieces. If you have the usual mix of smaller and larger fish then you will have to make sure there is something for each. Make sure the smaller don’t get left out.
Most commercial Koi food comes in two types: floating and sinking. The sinking type is more suited to Koi since they are bottom feeders. This feed form can last longer at the bottom of the pond because the meal is held together with fats; and, therefore, not easily dissolved by cold water. One disadvantage in using this is that you will not see your Koi as they feed.