huh not really ,when you consider that a 12 /8/6 can house that beast for the long run, if that is the most that you can afford ,and never mind all the talks about them outgrowing your set up , in the stated dimensions they will max out at 5 to 6 ,again get my point the bigger the better , but if that is all you have and you are really craving arapaima it will work, w/no more than a single fish in the tank and mega filtration , 20,000 u s d the cost of building the tank, not including the other stuffs that make it habitable, its only cement metal and a piece of glass c/mon . ive seen them thriving in similar footprint and looking way better than than some in public aquaruim display ,again size of housing matters greatly ,but with common sense and knowledge you can own the beast, also shop around, what you pay to mr slickster to do your job can be halved for a decent good workman