Firstly, because Japanese golden fish are mild in nature, suitable for group breeding, have complex feeding habits, are much more adaptable to water temperature than other species of ornamental fish, and do not have high requirements for water quality, they are easy to raise and breed. Since ancient times, there has also been a phenomenon of "carp jumping" The saying "Dragon Gate" is a metaphor for a person's rapid rise and success in officialdom. The koi carp is majestic and majestic, yet agile and elegant. It is often considered to be the incarnation of the dragon, the national totem. Therefore, since ancient times, there have been many paintings and poems depicting and chanting the beauty of the koi carp. Guangdong, Hong Kong and Macao and other places believe in using water as a source of wealth, so it is very popular in the market and favored by fish farmers.

Secondly, koi raised in ponds can remove dirt in the pool, and the presence of koi can make the water Clear, clean and full of vitality; koi likes to swim in groups, has a gentle personality, and its swimming posture is calm and elegant, which is very consistent with the traditional pursuit and values ​​of Chinese Confucianism. A gentleman should not only be gentle and elegant, but also be able to treat others properly and be courteous and virtuous. Whether it is the external image of tranquility or the internal character of being open to all rivers, koi fish are both loved and admired by people. It is precisely because of this that people call fish farming “inviting fish”. Koi also has an operational role. Koi is a very long-lived fish, with an average lifespan of more than 70 years. The longest-lived koi currently recorded is more than 200 years old. In addition, it can grow with people and is very memorable, which is why people often choose to feed koi.

The third point is because "Mountains are noble, water is wealth", and "water is wealth". The dispersion of wealth and the accumulation of wealth are absolutely related to water. Placing fish tanks in company offices or residences to raise fish has two functions. The positive function is to gather Qi, that is, to gather strong Qi, so that wealth can be gathered and prosperous. Another function is to block evil spirits (hurting people invisible is called evil spirits), that is, the power of water can be used to block the decaying and imprisoned energy, so as not to harm people invisible. The ancients believed: "Qi will disperse when it rides on the wind, and boundary water will Then stop." Therefore, water has the dual functions of stopping weak qi and gathering strong qi. Water, especially flowing water, can activate the auspicious or evil qi in its location. As the king of ornamental fish and a living gem in the water, Japanese koi is the first choice of many aquarists.