The reason why you want black koi fish is usually said in feng shui, hoping to use it to keep money. Usually, there is no taboo in raising koi fish. This kind of fish itself is very easy to raise, and its feeding habits are very miscellaneous, so there are many things to eat. It should be noted that because of its large size, it needs to be raised in a larger fish tank, and its oxygen consumption is very high. It is best to prepare a special oxygen pump for oxygenation to prevent fish from floating.

1. Changing water regularly: Changing water should be paid attention to first when raising koi fish. This kind of fish has a close relationship with carp and has relatively broad requirements for water quality, but changing water regularly to maintain water quality can also reduce the possibility of fish getting sick. Usually, it should be changed every five to seven days, and the water should not exceed one third of the total water volume every time.

2, pay attention to oxygenation: Koi is a large ornamental fish. Because it grows large, it consumes more oxygen, so it is necessary to pay attention to oxygenation. In the daily feeding process, it is best to use an oxygen pump to oxygenate 24 hours a day and turn it on at night, so as to prevent fish from floating.

3. Proper feeding: Fish digest quickly, so feeding is almost insufficient, and they will eat as much as they feed. However, this is not good for the health of fish, and it is easy to get enteritis and other diseases. Moreover, a large amount of residual bait falls in the water, which will also pollute the water and cause fish to get sick.