Here is what you Know so far:
it is a south american fish,
it is not a piranha or a banana,
1) it is smaller than 2' long when full grown,
2) it can be kept in a tank of 100g or less,
3) it IS a carnivore,
4) it has a forked tail
5) it is NOT a cichlid
6) it is NOT a catfish
7) it IS a characin
8) it is not a bottom feeder
9) it usually needs to be special ordered to buy and it is legal to do so
10) it is not usually a food fish though it can be eaten
11) it is legal to own or buy in most if not all states in USA
9 questions to go. Here is a hint, it is NOT a HUJETA.