it could be 8'*3*2, 5.5*3*3 or 12*2*2.. you could house any monster in them( except for the 5.5*3*3).. but if you want a comm of monsters, better have the a tank with longer width..
If the tank is 7' long and 30" wide you'll be able to house a silver or black for a very long time. Once the aro is 33 plus inches long you'll have to make a decision on what is right for the fish. An austailian aro could stay in that size tank for life. I would not recommend the same if the tank is only 24" wide.
jersey600;2041813; said:
^ bollocks.. i would say 2' is the minimum width required for an aro or possibly two.