Would probably need a better shot of their forehead to be sure, but they look like the fish called 'peruvian altum' or 'peruvian scalare.' Not a true altum, still cool fish. Thought to be a new species but that is quite a hot debate.
The forehead doesn't quite look like a true altum to me but that could be the angle and the bands deffinately don't look wide enough for the true altum.