I've had a reef tank set up for at least 3 years (50 Gal display with 30g sump), with various polyps, and others, and I recently switched two things to my tank, and ALL my polyps have been closed since.  It looks like the Pom Pom Xenia are all either dead or dying, as well.  I'm hoping someone can help...
I have always had perfect levels (8.3, 0 nitrate, etc.), but was still having an algae issue. To combat that, I decided to add a Vortech MP10 to make sure I didn't have any dead areas. I also added two boxes worth of Hagen BioMax Filter Media in a section of my sump, just before the return pump. My goal with those was to get rid of any "crap" that kept getting pumped back into the main tank by the return pump. My levels are still prestine, algae is pretty much under control, and the clarity of my water is much better. But, my polyps remain closed!?
Any ideas?
I've tried different speeds with the MP10, and no change. I've also tried putting Coral Frenzy in a few times, and no change.
Thanks. Any help is Greatly Appreciated.
				
			I have always had perfect levels (8.3, 0 nitrate, etc.), but was still having an algae issue. To combat that, I decided to add a Vortech MP10 to make sure I didn't have any dead areas. I also added two boxes worth of Hagen BioMax Filter Media in a section of my sump, just before the return pump. My goal with those was to get rid of any "crap" that kept getting pumped back into the main tank by the return pump. My levels are still prestine, algae is pretty much under control, and the clarity of my water is much better. But, my polyps remain closed!?
Any ideas?
I've tried different speeds with the MP10, and no change. I've also tried putting Coral Frenzy in a few times, and no change.
Thanks. Any help is Greatly Appreciated.