Big-mouthed catfish mainly eat some small fish, shrimp, benthos, plankton, aquatic insects and other foods, but aquatic insects and plankton can rarely be obtained during artificial breeding, so it can choose to feed some live bait such as small fish and shrimp. In addition to live bait, some animal feeds rich in protein can also be fed, and common pig lungs, chicken intestines, cattle hearts and sheep hearts are more suitable.

After artificial breeding, big catfish can also eat some synthetic feed with high protein content. When breeding big catfish artificially, it is best to choose animal feed with synthetic feed, which can not only save costs, but also maintain balanced nutrition.

Big-mouthed catfish belongs to warm water fish, which does not require high water temperature. They can survive in the water temperature between 0-38 ℃, but they need to grow in the water temperature between 12-30 ℃. However, the most suitable water temperature for their growth is 25-28 ℃. In this temperature range, the speed and state of their growth and development are the best. Most catfish are distributed in the south of China, because they need to grow in higher water temperature. If you breed big catfish in the north, you need to keep the water temperature above 10 ℃.