From my experience, pacus vary in aggression from fish to fish. Most of em have the usual tendency to let the other fish in the tank know not to mess with it, but I've seen individuals that were unusually peaceful as if they'd had a lobotomy. I think that obtaining a docile pacu is luck of the draw. I'm referring of course to pacus with a few years on them but not necessarily old. Youngsters seem to be a different story and nip every fin in sight unless you give them lots-o gallons.
Pacu's arnt necesarily peaceful
- Thread starter viciouspisces
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omg !!!! lol (just thought Id update ) this same pacu is near 10+" alreadyantonyg2 said:
maaaan ...and i thought silver aros grew fast!(Ill take some pics later)Anyone have any info on theyre growth rate -does that continue? or do they reach a point and slow a bit? I mean ,I have a big enough tank and the resourses to get a bigger -just wondering tho (Im a 'plan-o-holic') So far 'Paco' (the pacu -not original name , i know .. )and 'Beatrice' my osphronemus are cool together- in fact stick together like lovers - so much so ,its almost wierd lol Any pacu growth info sincerly appreicated 
sorry wanted to edit and post this pics but too late - heres a pic when I first got this 'cute little killer' ,now one of my 'ever growing monster' taken last night
i had one a year ago and he grew fast. He had a nasty little habit of biting the head off his tankmates.
I just lost my brand new Reed fish when he swam up the filtration tube and drowned himself. i really enjoyed watching him swim.
Ive been having trouble finding any pacus in my area. I owned one once and really enjoyed watching him. Also he seemed to grow in size fast. im a little scared to try mail order fish. Can sombody tell me of one with a high customer ranking?
ive had mine for 5 years its about 22inch but its been that for a couple of years its seemed to have stoped growing
