For what its worth, you can easily clean up the tank by doing the ADA thing (same side input-output) and not have a giant spraybar running the length. It is a bit distracting to look at. A 2234, with a koralia opposite, should easily give you solid circ, probably don't need the spraybar.
On a side note, one of the funniest (but accidentally cruel) things I ever did was put a koralia in my cube on a timer opposite the lights. I wasn't thinking. My RCS would dive into the nano when it was off to get at the goodies inside. The timer would come on and the rummies would have RCS for a night time snack. OOPS. Live feeding definitely brought out some color in the rummies.