I got this lil thing a while back and it was full and healthy as it could get. A few months past and it had mostly receded to a small bit of flesh in the centers of the polyps. It has since recovered to this point and has stalled. Anyone had this happen before? What could I do to jumpstart it? This tank is probably the healthiest tank I’ve ever had and all other corals and fish are very happy. This one came back from deaths door only to stall out. ( my Valentini puffer may have had something to do with it). Puffer is removed. Should I frag it or something?