That's a "Deep" tank for sure. Depth is the big "Enemy" when it comes to Reef Lighting.
With careful placement and if high quality components are used you could do well with a T5 fixture (6+ bulbs w/Individual reflectors) or a T5/MH combo.
If you go LED you'll have to incorporate some level of optics to improve penetration.
If you go MH you''ll want to consider higher W fixtures as 150w wont do much good. I'd suggest 400W if you intend to put high light coral/clam/anemone on the sandbed.
It really depend on how FAR you want to go with your coral. For easy ones about any REEF light will work you just have to place them carefully to make sure you meet their lighting needs.
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