Exactly what is the growth rate? How big, how fast? I'm just curious as to my timeline.....I too made the mistake of getting 2 pacu's, only to find this website when I got home.....They are such a neat fish. I'm tryin to decide whether to try to return them or tough it out until I can afford a 125......and that will have to do. But if someone could inform me on the timeline of growth.....that would be great!