flow

[dpg]

Toss up: closed loop system OR oceanmotion OR vertech mp40 for a 200-240gallon tank.
Cant make up my mind, closed loop + or - oceanmotion, or 2 vertechs?

[burgerchow]

depends on your rockwork. If really packed, then maybe closed loop, but if fairly open, 2 vortechs opposing each other should work. I've got 2 on my 120 and the fish and corals love it.

[mark]

I'm sure after a while you won't notice the Vortechs but take a look on OM WaterPix forum (http://www.oceansmotions.com/forum/viewforum.php?f=10&sid=b85647fb20059836f6ffe30496209fcd) for some clutter free CL tanks.