I have had this xenia for about 6 months. When I first got it it had just split another small split came off after having it about 1 month recently it started splitting again both peace the last couple weeks it has been about half the size it usually has been real small polyps not pulsating at all. is this something to do with the way they are splitting? all my other corals look fine. my ammonia is 0 nitres 0 nitrates 30 I don't have test kits for calcium or phospates. so I do not know where they are at my pacific gravity is 25 my temp is 78 my lighting is 130 watt pc. I do a 5 gal water change every 2 weeks. 29 gal tank. My skimmer is built into the skelter and has not had any thing in it for the last couple days but i did empty it and still had this proplem if it is a problem. I am thinking of replacing the skimmer with another when I can get back up to premune aaquitcts. any help is aparacitated thank you.