Need some lighting advice

[calboomer43]

Hello

I need some advice from the community at large. My new tank will be a 90gal. 4 feet long and 24 inches deep. Currently lighting will be 2x150W DE MH 10K. Lamps will be about 6-8 inches off the surface. I plan on trying to keep lower light SPS such as Montipora but also clams and acros. Should I look at additional lighting because of the 24 inch depth. Also would 800 watts of MH in 2x400 config be overkill.

Thanks

lonnie