In Chinese, "fish" sounds like 'surplus'. Chinese people always like to have a surplus at the end of the year, because they think if they have managed to save something at the end of the year, then they can make more in the next year.
Fish can be cooked in various ways such as boiling, steaming, and braising. The most famous Chinese fish dishes include steamed weever, West Lake fish with pickled cabbage and chili, steamed fish in vinegar sauce, and boiled fish with spicy broth.