I currently have 3 pacus and a arrowana housed in a 50gallin aquarium and I am hearing stories of them growing like 5inches in 1 month can someone please inform me how fast do they grow in 1 month so that I can get a larger tank.

I'm sure Steve can tell you that. I really don't know how fast they grow but what I do know is that Aros can get 3+ feet. And the pacu can get over a foot. I dobt they grow 5 inches a month though..


And you will need to get a tank 200+ gallons in the future...