More than 1 catties. You can gain more than 1 pound in a year. The shrunken bullhead is a large fish with a fast growth rate. If the bullhead is artificially cultured, the weight of the first-year-old fish can reach 0.8-1 kg under the condition of sufficient feed. The bullhead is suitable for breeding in fertile water ponds. In water bodies such as natural rivers and lakes, individuals weighing more than 10 kilograms are usually seen, with the largest reaching 50 kilograms.