red bellie pacu

Question
i have a red bellie pacu that is about 10 inches and dosent seem to be getting any bigger it is in a 150 gallon tank and has 3 black convicts in there with it they are all under 3 inches. what can i do to make it get larger. could i possible be able to put another one in the tank with it??

Answer
10 inches is pretty good sized for a Pacu, yes they do get larger but once they reach the size yours is they slow way down as far as growth goes so slow growing is normal.  Yes you can add another Pacu to the aquarium but it will not help with the speed of growth.