I'm still not sure what you mean by "metro treatment". I must have missed that in the threads. I am going to FW dip it for 20 min to see how that gores.
Is it possible it is receiving TOO MUCH light. It was looking SO MUCH better only yesterday before I moved it! I did do a 20% water change though, which could have stressed it out.
I have a bunch of junk in my tank... I thought it was diatoms, but it seems to be growing over my corals (not sure how to tell if its dinoflagellates)?? It grew after a pump ran dry for about a day, and bubbles were everywhere in the tank. I tried siponing out as much as I could.
BTW- I have already noticed my scarlet cleaner shrimp poke around in the clam on more than one occation. Could it be helping or harming it?