koi tattoo swimming down

What is the luckiest position and color for a koi tattoo?
Is it lucky to have a certian color ? Does the area of the body that it is placed on matter? Does the number of them matter? What does it mean with head up, down or faceing to my left or right? What is the symbolism in the water in which the koi is swimming ie : calm , waterfall or rough water? I know that I am asking a lot but if anyone has answers that would be great.
The luckiest colour is gold as it symbolizes wealth , power and luck aswell as the fact that gold koi fish are rare in Japan. And as for position traditional koi tattoos are of the fish ascending a waterfall (this shows strength and power) and these tattoos are mostly on your back. Hope this helps.






