2. You can choose koi fish: In Feng Shui, koi fish is also called "the fish that makes a fortune". Koi fish has been regarded as a mascot since ancient times, and koi fish is widely circulated as a geomantic fish. Red-and-white koi fish, named after its red stripes on a white background, is the longest-lived variety in koi fish, so it is also called "Fushou Fish". Different colors and varieties of koi fish are kept at home, and there are different opinions. Prosperity in official career, making money into treasure, good luck and increasing wealth are the goals pursued by some people.