It is usually a good idea to start all corals at the bottom of the tank with MH
lights when you first get them. As they acclimate to your lighting, they can then be moved up accordingly. This will help prevent bleaching if they came from a much lower intensity tank. If they came from a similarly lit tank and in somewhat the same relativite distance to the lighting, they may be fine.
I keep a few varieties of capricornus and all are located about midway in the tank (24" tank depth) with PC