Koi fish tattoos have been present in the tattoo world for centuries. The origin of these tattoos is rooted in the ancient Chinese culture, where koi fish were a symbol of wealth and abundance. As such, they were often used as a sign of power or luck. In Japan, koi fish tattoos were also associated with courage and strength. This is why they have become so popular in modern times, and they are often seen as a symbol of resilience and hope.