Yeah the color contrast on the black rock will be awesome with a peacock. Try to get some actinics, blue and some uv if you can. Maybe a pendant style light like a small Kessil.
I am def thinking about the Kessil. Also, the tank came with an included filter but it died over the weekend while I was away. I am going to pick up another today.
The shimmer you get from Kessil is like no other light on the market. I'm considering one of their grow lights for my refugium. Could be cool to have a purple glow in the sump area. :D