(sorry, the sound is terrible)
Well, this style of flying carp streamers is not an ordinal way in a private house.
Usually we set a tall pole in a family garden and fly carp streamers like a windsock.
This is the way they put a large number of streamers for display at the museum garden downtown in Nagoya for the Children's Day on May 5.
The museum sets these streamers weeks in advance and many family visitors enjoy them every year.
In Japan a carp represents one of auspicious items in Japan.
It has originally come from a Chinese traditional legend that a carp upstreams a river to become a dragon. That is why a carp is considered as a symbol of strength and success.
I love watching colorful carp streamers flying in the wind as if they are summing in the river.
(this image from a website for children)