Two fish pictures show that it lasts for a long time, more than one year. In geomantic omen, water is wealth, and fish play in the water, which means that financial resources are rolling and wealth is prosperous for more than a year. Nine-fish diagram is often the most common. Yue longmen, a carp, has been said since ancient times, symbolizing a step-by-step promotion. Fish swimming around in the water also means "like a duck to water" The colors of fish are red and black, red stands for positive wealth, and black stands for windfall, which means that wealth is vast and financial resources are rolling. Therefore, it is perfect to send fish to relatives, friends or elders on holidays.