What is the best powerhead placement?

[dvybiral]

Hello Reefers,
I am placing 3 EcoTech powerheads in my 120 gallon display tank which is 4' x 2' x 2'. Two MP40's and one MP60. I want to ask what is the best placement, I plan on having a mixed reef with SPS also. Any ideas, and if you could show me on a drawing would be great. thank you for any ideas or help.

 

[Peach02]

Imo it depends on your aquasape and Weir placement.
If you have a aquascape that fish can swim around both sides I would have one powerhead on each side one pushing water around the back one pushing around the front. Im not sure where you would place the third powerhead