Rickytsui, lighting is not as important as you think. This coral could be kept alive and colorful with just VHO's. It does need high water quality to thrive and remain colorful though. I suggest you closely monitor your calcium, alkalinity, phosphate, nitrate, magnesium, and salinity using qualtiy testkits from Salifert and a refractometer (if you don't already do so). I have kept this coral under 175w + 250w halides and also just T5's in a friends tank.
na, do a search on acropora loripies, it's a common color. If it is bleaching then is has been bleached for over a year an grown from a little frag into a colony (I don't think so)