Hello Kris,
Is the PFO lighting unit your final decision? What about double-ended bulbs and fixtures? If i understood correctly, your tank is having a +/- 19 " water level!!? In fact, you could run 2 x 150w 10 000k DE bulbs with or without actinic supplement and still have a great lighting environnement for your corals!
What's your objective? Display or growth. Can be both. In any case your choice should respect your need and those of your corals. We distribute high-end DE based pendant fixtures and we may be able to help you. Go have a look at
www.giesemann.de and if you like that it will be a pleasure for me to answer your specific question about available fixtures on the matket and their availability. Lighting is a critical and contreversial subject amongs aquarist and the large load of information can become confusing for reefer's.
Get in touch with me if you want at
xeniaservice@sympatico.ca 