Ahhh, but then you won't be able to afford the tank.
We have a plan for the next stage in our house renovation project that turns a large garage into the living room. The room needs some splitting up otherwise it's an open plan monster and a room divider fish tank has been approved. I'm reckoning an 8 foot by 2 foot footprint should do nicely and however tall seems to work. Next question is whether to go marine with it.