No pasadena,
It's not fake, it is a large AFRICAN Tiger fish. They get even larger than that though. I have seen a fishing show where those were targeted. Very difficult to hook due to the hard lining in the mouth. I also had a few of them (one at a time!) in my youth when I use to have an aquarium at home and I use to work at an importer where those things would come through into our country for retail. It was "fun" to watch them chew up a goldfish feeder!
To help clear things up, Pirahnas come from SOUTH AMERICA. Tiger fish come from AFRICA.
"LOOK AT THOSE CHOMPERS!"