Koi are an ancient and mystical animal in the far east. Myths are written about their journey up river to magically transform into a dragon. The stories talk about their perseverance and vigilance to never turn back. Their elaborate colors have made them very valuable and some have reported certain species sold for over $500,000. These living jewels are regarded as wise and loyal creatures. One koi was once reported to have died at the age of 226. Koi are usually depicted in ponds with big lilies as tattoos and can vary in size. This is a great image to include in a Japanese motif tattoo.