Deep sps tank

[Steph14]

Hey guys, first time posting here, im in need of some advice from the pro's, i have a 500gallon tank(96x34x32) recently switched from freshwater to a reef tank, i have a ATi 8x80w sunpower over it, i get good par under the ati unit but nothing on the ends, my question is, will 3x hydra 32's stacked next to each other on both ends be enough to support acropora around a foot from the sand bed? Or will the light not penetrate enough? Or is there other suggestions of lights i can use other than metal halides or radion Led's? Thanks

 

[blaxsun]

For that depth I might look at the Kessils, as they have different reflectors that you can use to really punch down. You could probably get away with even 1-2 Kessils on each end.