Koi fish tattoos have a rich and meaningful history, particularly in Japanese culture. The koi fish symbolizes good luck and fortune, as well as perseverance, strength and longevity. The tattoo may also represent courage and ambition due to its history of swimming upstream against the current and climbing waterfalls. In Buddhist culture, koi fish also represent courage, strength, and the ability to achieve your dreams in spite of all obstacles. As such, koia fish tattoos are popular among individuals who are embarking on a journey of self-discovery or striving to conquer adversity.