Niger triggers are fine in a reef tank as long as you have good filtration. Just add any cleaner shrimp first or @ night. Besides myself , I have seen many successful reef tanks including greenmako's tank with a niger.

As for the bulbs , go with a combination of daylight 6000k by giesman , 11000k aquablue from geisman, and finally a UV super actininc .

I don't no why people just use white lights for fish, fish have colors that come out with the right lights just like corals do.