i think the prettiest saltwater fish for color is the dolphin (not flipper) but (mahi mahi or dorado) the color aspect on them is the best with the blues, greens and yellow! but the coolest thing is when your fishing a school of them and you hook one, your not supposed to pull it out of the water right away because the rest of the school will take off... so while waiting sometimes for the next person on the boat to hook up, the one you have may lose all its colors and turn to a silver so bright that you can see your self in it like a mirror! must be a schooling defense mechanism but man are they cool fish... (and the taste yummdillyishious too! )