They are seen to be peaceful and very meditative as well as good luck. Yet, the symbolism does not end their. The Koi fish is believed to swim back up stream against the current and therefore is believed to be a very strong animal.
This has lead to a symbolic connection between the fish and strength. So Koi fish make a wonderful tattoo that can easily represent good luck, strength and power. They are typically depicted with water splashing behind them and twisting or jumping out of the water making for a very dynamic and beautifully color tattoo design.
They were very symbolic, mysterious and beautiful all at the same time. They are bright and colorful and when they splash of blue water behind them, they can make a dynamic tattoo full power, symbolism and movement. If you are considering to get a koi fish tattoo design then you should really know what the 
The meaning of this symbol has become so much that it's hard to be able to communicate in one paragraph. This can mean many different things. For example on Children's Day in a group of at least four Japanese koi and often fly together at the flagpole. Thus, fish can be regarded as a symbol of family strength and unity. Since legend says that the koi tattoo fish swim upstream was also a symbol of power, struggle and overcome obstacles in life. In this same vein is also a symbol of courage. Japanese people believe that the koi tattoo so brave when it was caught and placed on the chopping block to be killed was not vibrate like other fish, but dare to accept death and fate as a person, especially someone with the spirit of the Samurai had to accept their lives and fallen short.
Others may find different meanings to it as a design for extremely sought and considered so high in all of Japan has become a symbol for all things good, strong and powerful. Because it makes a great tattoo designs. By Chris Ryerson