One time, I tried if I could do it in my living space, and the only conclusion I could come to was - to abide by everything I'd have had to consider I could only have...moved out. The problem with it is that it cannot easily be applied to the habitation of today, with bathroom, electricity etc.
well i do.. depends on the situations.. for example.. it is good to let something"..that never sleep on the living room... meaning to say... an acuarium with fishes /will bring calm moods.. etc ...
p/s make sure do not put diffrent kind of fish in the same tank