It can be a lonely life being a fish. Your career options are limited, the opportunities for travel slim and the only lasting relationships you can hope for are distinctly arranged. On the other hand, you have a lovely tank, food delivered daily and a nice view. Alright, so the exact dimensions of your tank may vary according to budget, but we’d all have a bigger flat if we could afford it. And how much space do you really need? Once you’ve found somewhere to put the castle and the...