I need a little help. Some of my palys have closded up, no fungus or signs of any critters, day or night. I have check my water and for some reason my PH is high, as best I can tell 8.8 to 9.0 Is there a way the PH can be lowered without having the total alkalinity drop. Any other suggestions why the palys wont open. The zoas are doing fine, seems to be just the plays.

