Most branching LPS like frogspawn can only reproduce buy growing new branches mostly sprouting from the side of the fleshy area of a head or one head slowly spliting into two or more and growing from there OR buy releaseing sporse into the water currents. When they get big with lots of branches, people frag them buy cutting the branches somewhere near where the branches split. Best to seal the cut with epoxy or simular to keep parisites, ect. from infecting the polyps from getting thru the skeleton. Sometimes the polyps will ' Bail Out " from the skeleton IMO, from issues relating to stress of some type like poor water or lighting as a way to escape and try to reattach somewhere else.