According to the Japanese concept, Koi fish is an ornamental fish that increases the aesthetics of the house, shows sophistication, class and brings luck and fortune to the homeowner. In order for Koi fish to bring the best benefits, players should choose Koi fish that are healthy, have a beautiful body, beautiful and eye-catching colors, and have a clear origin. Quhaku would like to share some experiences with players on how to choose beautiful and standard Koi fish