Hi guys. I'm adding a couple pieces to my tank and it's my first time with SPS. I added some frags about 1-2 weeks ago. They have had good color since I got them. I can not get polyps to extend. I haven't seen any encrusting yet but i haven't had them long. How can I get polyp extension?? My tank.... 200 gal with 250 gal total volume. I'm running reef breeder V2 on 60%. Getting 300 PAR where the SPS is. NO3 is 10, PO4 is .04-.06. Cal 440, ALK 8.4, mag 1380. All LPS is doing good. Any ideas?