2, such as Jin koi fish, also known as Wang Caijin Carp, when the color of the fish is golden yellow, that is, the five elements belong to gold, and gold can produce water, so it has a strong financial urge, while this koi fish is golden yellow, so it has the strongest financial urge. The fish body is like a knife, fierce, has the function of blocking evil, and also has a partial fortune. Many high-risk and high-profit industries like to raise them.