| This has to be a trick question... |
No, not a trick question.
But, a question that a lot of Hobbyist do not ask themselves before setting up a Tank / System.
Lets say that the "New" Tank will house Mainly or Strictly SPS
Flow requirements are different than say Softies.
Some of those Diehard SPS
Hobbyist like to try and blast their Colonies off of the rock.
This type of flow may just bend a Nice Leather into a pretzel.
Or say, a low nutrient tank brings out better color in SPS
and will starve a Softy.
I have found that my Zoa
/ Palys like there water a litter Dirtier, if I want them to propagate and just not exist.
Trying to shove as many different Corals in a given dimension, just because you like their looks.
May not turn out the way you planned.
Having a 400w Metal Halide over a 18" tall tank may work well for some and fry others.