Both fish eggs and swim bladder can be eaten, which is very nutritious. Steamed is of course the most nutritious, but it's a pity that you chose the wrong fish. The most suitable freshwater fish, stewed soup and steamed fish we bought at the farmers' market are undoubtedly crucian carp. Most of the carp we can buy in the market are cultured in artificial ponds, which are not suitable for stewing soup, let alone steaming. The taste is much worse than that of crucian carp, and it cannot be harsh compared with crucian carp. You'd better stew carp at home.