Well im wondering what are the full list of compatible fishes to go with the arowana. I may be planning on getting a 300 gallon after I sell my 10 gallon,30 gallon and 90 gallon to my friends this weekend. I was planning ahead of times but im just kinda worried the fitting issue. Can i put 1 silver arowana with 3 peacock bass and a manguense? And their was a thought of getting a motaguense as well as the last fish in the tank. But i think its going to be way overstocked.If so i can see if i can get a larger tank than a 300 but it may be a bit longer in time for the fishes now to be in their temporary tanks.I have 3x55 gallons tanks ryt now.And ill be keeping 1 for a quaratine tank.The arowana is in a 55 alone and hes only 6 inches and the peacock basses are in a 55 alone as well as they are only 2 inches and the managuense its goin to be 3.5 inches and maybe a motaguense but unlikely.