From the perspective of geomantic omen, how to place the fish tank? How to judge the so-called fierce position and auspicious position?

Fish tanks are usually placed in fierce positions. Judging good or bad, from the point of view of Bazhai School, if your door opens to the north, then the north, east, south and southeast are auspicious. If the door opens to the other three directions of the above four directions, then the other three directions are auspicious. On the contrary, the other four directions are fierce. In short, north, east, southeast and south are one group, while northeast, southwest, west and northwest are another group. This is the so-called division method between the East Fourth Hospital and the West Fourth Hospital in the Eighth Hospital.