That fish with its mouth wide opened and sharp teeth are common in the congo river, in swahili language we call it "manda". It's one of the predatory fish that eat other fish.You'll be surpirsed to hear that they don't attack humans as you don't find them in shoal like the piranhas. So you safe to swim in the congo river but mind the crocos though!
K.Kasongo/ nurse in London.
Congolese.