help with water movement please

[WarDog]

Originally Posted by xtaze

long story short im doing my best not to buy chinese products

...and that's just fine.

Both the Tunze and Vortechs are high end pumps. The Vortechs take up less tank space, have the motors outside (less heat), but are know to be noisier. I`m sure you've already researched this.
At this point you may just want to consider the cost (unless its a non-factor).
Also with a 72 inch tank, you may need to supplement them with even more pumps once that SPS addiction sets in, so consider that as well.