I just transferred to my local state school and will be living at home so I have decided to build a tank housing cichla monoculus. The inside dimensions of the tank will be 72"x48"x36". So it will hopefully house a little under 500g upon completion. I plan on stocking it with 1 jardini arowana and the rest will be monos. My question is what would be a good number of monos that would allow them to live comfortably?