In Japan, on Boys' Day, people with sons hang beautiful carp flags to pray for the early success of their boys. On the opening day of a store, a fish tank with carp is placed in front of the door for "good luck" and "great fortune".

Carp represents the "year after year", "lucky", "dolls holding fish", "rich and valuable!

Expanded Information:

The carp flag is a hollow carp made of cloth or silk, divided into three colors: black, red and green-blue, with black representing the father, red representing the mother, and green-blue representing the boy, and the number of green-blue flags representing the number of boys.

The Japanese believe that the carp is a symbol of strength and courage, and expresses the desire of parents to have their children and grandchildren become brave and strong samurai. The day is designated as a national holiday based on the principle of "respecting the child's personality, seeking the child's happiness, and thanking the mother.

Hanging the carp flag, the general flagpole should have a rotating ball at the top of the ball or pearl shape, below the installation of the windmill, and then the flagpole on the top of the five-color or depiction of carp streamers, the following according to the size of the black carp, red carp, small carp and so on in order to hang. However, many public **** occasions also hang carp flags in rows as decorations.

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