fish id plz

[12 Volt Man]

they all look that colour when big. dark on the bottom half, grey/brownish on the top half of the body.

red belly or black, it doesn't matter. when they get about 18" and up, they all look pretty much the same, no matter what species of pacu.

 

[verruckt]

ive seen alot of pacu in tanks and none that color. most r just dark. thats actually the only pacu on youtube ive found that color