2. Carp is a famous auspicious fish in geomantic omen, which can ward off evil spirits and transport wealth. In ancient times, people began to draw carp maps, hoping to make houses prosperous. With the increase of artificial ponds in hospitals, people began to cultivate carp in ponds, which shows the position of carp in geomantic omen. So when you want to raise fish, you can choose those that are beneficial, meaningful and good-looking. Among them, red carp represents good luck and transshipment, and green carp represents Huasha Town House.