I have a small frag of star polyps that I have had for about 2 weeks now and all that is new is 1 new head and a small amount of growth of the mat (roughly 1mm) on one end. In 2 weeks is that fast growth or slow growth? I have moderate lighting. This is my first coral so I'm not sure how fast they grow, I hear they grow fast but I have yet to see it first hand I want my tank to be overrun with these little star polyps, i love them. i may have only 1 or 2 other corals in time.