For the newly bought koi, the way of feeding is different, because when the koi just changed to a new environment, they will not adapt to the situation, it takes a period of time to adapt to the surrounding environment. It is better not to feed them when they are not adapted, otherwise they will suffer from indigestion, which will easily affect their growth later. Generally speaking, you can wait for three days to see, if they adapt, they can be fed, if they do not adapt, they can wait for a few days.
Generally speaking, Koi that adapt quickly can be fed after three days, and Koi that adapt slowly will adapt within a week. However, the specific days or to see when they adapt, do not rush to feed. In addition, in the process of Koi adapting to the new environment, we must make the surrounding environment suitable for Koi life, such as water temperature, oxygen supply, light and other factors, all need to pay attention to. Keeping the environment suitable can make them adapt better and faster.
When you first buy the koi, you need to put them into the fish tank. However, try not to pour them directly into the water of the fish tank, they may not adapt well. You can put the koi in the tank with the bag first. It takes about two hours, and when they get used to it for a while, they can be dumped into the tank. As for the problem of water change, you can do it once a week later, but don't change too much water, about a quarter of it.