It’s called Goliath because it’s a huge, muscular fish that can grow more than four feet long and weigh over a hundred pounds. It also has a gaping mouth full of dagger-like teeth.
https://www.youtube.com/watch?v=ihvynXm77C8
Like a tiger, it’s a fierce predator. It hunts alone and stealthily stalks its prey in calm eddies only to chase it into turbulent waters for the kill.