Koi fish can have many symbolic meanings, with two of the most popular being good fortune and overcoming adversity. The symbolism of the Koi fish comes from the legend that a Koi fish that is able to swim upstream and all the way up the Yellow River falls will be rewarded by being turned into a dragon. The Koi fish is a popular tattoo design.
The color of the Koi fish also plays a part in the symbolic meaning. A red Koi, for example, represents love, while the blue Koi represents reproduction. Koi fish are normally drawn, painted or tattooed to have an extreme masculine appearance.