Advice on lightning

Hello, I was reading about lightning in a reef tank and found out that my layout may not be the best, so I want to ask you what you think about it and what should I change / replace.

Tank dimensions: 27.6 inches (width) x 23.6 inches (depth) x 51.2 inches (height)
137.4 gallons (520 liters)

Lights (mounted 9 inches above the water level):
(all T5 bulbs and 54w, NOT LED)

• ATI blue + (from 10:50am until 7:00pm)
  ATI aquablue special (from 10:50am until 7:00pm)
  ATI blue + (from 9:00am until 9:00pm)
  ATI blue + (from 9:00am until 9:00pm)
  NARVA oceanic blue (from 10:40am until 8:20pm)
  ATI coral + (from 10:40am until 8:20pm)
  ATI aquablue special (from 10:10am until 7:40pm)
  ATI blue + (from 10:10am until 7:40pm)

If you need pictures, let me know. From what I figured out on forums by now is that I should have at least one purple light (fiji purple prefereble?)

Please, any comments will be very helpful.

Thank you.