Powerhead questions

[blackout12]

Hello all! I have a quick question that has been bugging me for a few days. What is a good position to put my powerheads in? I have a 75 gallon tank that i would like to reef ( doesnt have any corals yet but would like to get some zoas in a week or two). I have 2 hydor 1150 and 1 hydor 600.what would be a good position to put them in for little to no dead spots?

 

[blackout12]

bump

 

[Mark Bianco]

IMHO On the back walls about midway down pointed at the center front of the tank slightly pointed towards the top. As far as the other it would depend on you aquascaping