if i had one or two pacu that were a tiny bit smaller than three peacock bass two arowanas and a juruense catfish in a 520 gallon fish tank until they are too large and have to be in a pond would they get along
I would not worry about the aros. To eat a small juvenile 3"-3.5" pacu aro must be fully grown 2'+. Would worry about the p-basses though, big maw they have ^^
i still need to get there 520 gallon custom tank in and i havent got the other fish in but i would have one black and one silver aro and the pbass at first plus the other fish would be 6-8 inches and the pacu would be 5-6 inches long