I am pretty sure that fish is not a pirhana, but a tiger fish. Funny thing is that I was playing a Rapala fishing game (gotta stay fresh when the weather doesn't cooperate ) and unlocked some of the special videos. One was of this guy who was using the magnum rapala and was catching these fish in the Congo. I guess it is their prize game fish there and it sure look like some good fights.
You may be rite, since the men in one of the pic's look African. I don't know I was just going by the caption the was on the pic's when I recieved them. All I know is I hope they stay where they are and don't come here!