Crucian carp is one of the common freshwater fish in our country. The number of crucian carp living in rivers, lakes, streams and other freshwater basins is relatively large, and many of them are cultured crucian carp. However, the cultured crucian carp is not exactly the same, some of them are large-scale breeding, these crucian carp generally live in the breeding pond, and some are cultured in the fish tank. No matter what kind of living conditions of crucian carp, they have requirements for the surrounding water quality, so an important step in the breeding process is to ensure water quality, the most important way is to change water regularly.

2. How often to change the water

for crucian carp has been introduced above. When breeding crucian carp, whether it is large-scale breeding or putting one or two in the fish tank, attention should be paid to ensuring the water quality, that is, changing the water regularly. Generally speaking, if they are kept in a fish tank, they have to change the water every week or so. However, it is not necessary to change all the water every time, about one third of it can be changed. However, in winter, it can not be so frequent. Moreover, if there is a filter in the fish tank to clean up the garbage regularly, the interval of water change can also be extended appropriately.

In addition, the crucian carp is cultured in a large area in the culture pond, and this situation is quite common, but because the specific situation of the culture pond is different, the number of crucian carp cultured is also different, so the most appropriate interval for changing water is not certain. In this case, it is recommended to monitor the water quality every day, change the water in time after the water quality deteriorates, and record the interval between water changes. The average interval can also be referred to in the next water change.