I have a red-bellied pacu living in an outdoor pond. At over two feet long, he's hardly what you'd call a baby, but he still seems rather timid nevertheless. I occasionally feed him grapes and walnuts which I toss into the pond. Sometimes, when he's in the midst of swimming towards the treats that I toss to him, he'll suddenly veer away as if he's alarmed by the fact that I'm watching him. Whenever that occurs, I move back a few feet so that he feels brave enough to resume swimming towards the piece of fruit or nut that I've given him. Are pacu supposed to be generally that skittish or is mine something of an exception? Thanks in advance.