Green Star Polyps
Green Star Polyps grow well in strong to moderate lighting and good flow. The mat (or base) is typically purple. At night, the polyps recede into the mat, and only bumps are visible. Some consider these to be a weed, but if kept on some rock away from other rockwork, its spreading can be controlled. If you get a frag, figure out which side is the underside so you don't glue it down on the polyped side.