Second, what should be paid attention to in raising koi fish 1. Change water regularly: First of all, we should pay attention to changing water when raising koi fish. This kind of fish is closely related to carp, and the requirements for water quality are relatively broad, but changing water regularly to maintain water quality can also reduce the possibility of fish getting sick. Usually it should be replaced every five to seven days, and the amount of water exchanged should not exceed one third of the total water.
2. Pay attention to oxygenation: koi fish is a large ornamental fish. Because of its large size and high oxygen consumption, attention should be paid to increasing oxygen. In the daily feeding process, it is best to use an oxygen pump to fill oxygen for 24 hours and turn it on at night to avoid fish floating.
3, proper feeding: fish digestion is relatively fast, so feeding is almost not enough, how much will be eaten, but this is not good for the health of fish, easy to get diseases such as enteritis, and a large number of residual bait falls into the water, which will also pollute the water body and cause the fish to get sick.