Catfish is a common fish living in fresh water, and their growth rate is faster, especially when the environment is suitable and food is abundant. It takes about four years for catfish to grow to 20 kilograms. The specific time required depends on the specific situation, because in different environmental conditions, the growth rate of catfish is also different.
There are many factors that affect the growth and development speed of catfish. When the environment is particularly suitable, that is, when the water temperature is suitable, the water quality is clean and the space is sufficient, and when the food is particularly sufficient, the growth rate of catfish is fast, at this time they may grow to 20 kg in less than 4 years. Generally speaking, cultured catfish grow fast and can meet the above conditions, but the catfish sold on the market are not so big, they may be sold when they weigh less than 20 kilograms. In the case of unsuitable environment, the growth rate of catfish is slow, at this time, it takes a long time to grow to 20 kilograms. For example, the growth rate of wild catfish will be slower, and it may take longer than four years to grow to 20 kilograms.
Catfish grow faster when they are younger, and they will continue to grow later, but the speed will slow down. Specifically, the growth rate of catfish is relatively slow when it grows to more than 20 kilograms. At this time, it takes about 6-7 years for them to grow to 30 kilograms. The specific time required also depends on the suitability of the surrounding environment and the adequacy of food. In the case of various factors are more suitable, catfish long to 30 kg required time is short; On the contrary, it takes a long time when it is not suitable.
