Koi fish tattoo designs are a wonderful and vivid tattoo idea. Popular in tanks in Japanese restaurants, this orange-spotted fish is beautiful. If you’re a fan of the water or of fish in general, a koi fish tattoo would  make for a great neck or back piece. The concept of the koi fish tattoo designs is unique, and few could pull it off. There are also a number of ways you could design the fish, whether it’s to look as if it’s swimming or stationary! Color is another important aspect of tattoo selection, as many people choose the most vivid colors. The tattoo’s ink stays vibrant for most of one’s life, however with age, skin pigmentation changes, so bright colors are best.