For my third coral I purchased a nice large purple rock with Green Star Polyps. The coral is on both sides of the rock which is taller then it is wide. I've read where some peeps think this is an invasive species but with my current lighting its what will work.
Found a large snail in this coral chunk when I had it in my specimen container, looking at images it looks like a Stomatella snail. After reading up on this type of snail I put it into the tank.