[Henry100]

When I say aquarium cube I mean an aquarium which has a square footprint,which is not literally a cube,but it is closer to that than a rectangular aquarium.Some benefits of such an aquarium are these:
1)Symmetry relative to four different horizontal axes(while a rectangular one has a symmetry according to only two horizontal axes),which helps in keeping steady water parameters in the whole volume of aquarium's water.
2)All of its dimensions are either the same or very similar with each other,which results in watching fish swimming in all directions horizontally,while in a rectangular aquarium fish more often swim in one direction horizontally.Fish,in their natural environment which is the sea,swim in all directions horizontally.
3)Three equally good viewing panes,while a rectangular aquarium has only one good viewing pane and two not so good viewing panes.