Size and Shape of Aquarium Impact to Corals

[Brisk]

How does the size and shape of a reef aquarium impact its maintenance and suitability for different types of corals?

 

[lapin]

Too deep and you will need to dive in to clean down low. Also will need bright lights.
Too long and you might need big, big power heads for enough flow.
Real small and water fluctuations may cause problems.

 

[Spare time]

+1 on the above as well as small tanks mean that corals will begin fighting sooner