Adding flow to a 120: nano wavebox or two 6105's?

[trilinearmipmap]

I have a 120 gallon that is being switched from a mixed reef to more hardcore SPS. I am upgrading the lighting, getting a controller, and adding more water movement.

I currently have to Tunze 6065's.

I thought of replacing the two 6065's with two 6105's. Alternatively I could keep the 6065's in place and add a nano wavebox.

Which would help more in the switch to an SPS tank?

 

[shawnz28]

My opinion would be sell the 6065s and buy the 6105s. I think you would benefit more from the stonger random flow they will create over the wavebox

 

[Herzberg]

I had 1 nano wavebox and 1 6105 in my 100g sps. I deffinately feel that I was lacking flow so I swapped the wavebox for a second 6105. I'm very happy with that decision.