Crucian carp is a common freshwater fish, and their size is relatively small. After adulthood, their weight range is generally between 0.3 and 2 kilograms. Specifically, there are many factors that affect the size of crucian carp. For example, the body shape of crucian carp living in different environments is different, and the body shape of wild crucian carp and cultured crucian carp is different. Artificial breeding crucian carp not only grows faster, but also has a larger body size, sometimes close to 2 kg; Wild crucian carp live in the wild, unable to control various factors in the environment, so the general size is small, weight is difficult to exceed 1.5 kg.
In addition, how big the crucian carp can grow will also be affected by species factors. There are many varieties of crucian carp, and the body shape of these varieties is not the same. There are some varieties of the body itself is relatively large, such as a crucian carp called "engineering crucian carp", their weight can reach 3-8 kg. However, the large crucian carp species are relatively small, most of the species are not large.
Crucian carp can reproduce, but it needs to be after sexual maturity, that is to say, it needs to meet the age conditions. Crucian carp sexual maturity age is relatively early, generally speaking, 1-2 years old have the ability to reproduce. Some early-maturing crucian carp can reproduce at about one year old, and some late-maturing crucian carp can also reproduce at more than two years old. After sexual maturity, crucian carp will begin to breed in March and April every year, depending on the local climate. If the climate is warmer, crucian carp can start breeding in March.