i recently bought 2 maxi-jet 1200 ph's and one didn't come with the venturi directional flow shoot.....basically a piece of plastic that directs the water from the output hole. i looked a a few tank pics and it looked like nobody was using this feature. the two phs here aimed toward the center of the tank in opposite back corners. is that what i should be doing with my tank, or should i get the little piece of plastic and use the feature. hope you guys understand.