So recently i lost one frag of zoas and thought it was just a fluke and didn't do anything about it. Now another frag is starting to look pretty bad. Lost a few polyps completely and some are not opening up any more. Not sure what’s going on with them. I tried a freshwater dip (RO) and it seemed like it helped somewhat at first but the problem is still there. I have a ton of those Asterina Starfish in my tank and starting to think that those may be causing the problem. From what I’ve read Asterina Starfish normally would eat dead/dying corals so potentially it’s not the issue here... Anyone has any experience with zoa problems? I would really appreciate some advice on this. Would really hate to lose all my zoas, especially some sweet ones that I picked up from Mike’s fire sale last nigh. Thanks