Help...my Bubble tip Anenome is taking over the tank!!

[newreefer_59]

Have A 150 Gallon tank, and Bubble tip Anenome as a main tenant along with 16 reef friendly fish. The coral is SPS, LPS and softies. Recently, the anenome has planted itself in the middle of the tank and has grown so large, it is taking some of the SPS coral with it. And now, it is covering the Crocea clam, tho does not appear to be hurting it. My question, he was cool to look at when he was half this size and wondering why he has gotten so large. Should I feed it more than once every few weeks (raw shrimp) so it does not get as large? Is it time to remove it altogether and sell it. It is cool, but is the size of a large bowl most of the time now.