Strongest, Most Powerful Fish?

[BichirAddict]

I'd say a full grown black pacu since their size,weight,and speed.

 

[Teddude]

wned: Payaras KILL!!!!!

 

[Drunken]

I remember some time ago on discovery where some guy went into the Amazon to catch the worlds largest freshwater fish (must be a. gigas), anyways think they were 6 blokes holding on to it when it wanted "out".... 6 men got thrown everywere, and if i remember correctly 1 of them broke an arm...

Now the question is, would it still be a powerfull fish if it was only 1 foot long ?