When it comes to favorites with tattoos the Japanese Koi fish tattoo design is a leader. both in beauty and popularity. This design represents Zen and symbolizes 'Good Luck'. The Japanese draw a parallel between the Koi fish and a Samurai Warrior as they both represent courage, the ability to attain high goals and to overcome life's difficulties. Before rushing off and getting a Japanese Koi fish tattoo you need to consider many factors including the tattoo color, its location on your body and of course any complimentary inclusions.