Pacu Color Change

Question
Can Pacu fish change color?  ie   from red sides to black

Answer
Hi Betty... Yes they can change color.  A lot of color change has to do with diet or aggression and somewhat to do with the age of the fish.  What kind of Pacu do you have and how old it?  What do you feed it and how often?  Does it have tank mates if so... what are they?  dave