Hey guys,\n \nSo - I now have a few corals in the tank, and all are doing really well. Well, they all are doing really well except for one. I'll put some pics up later, but I have three zoas and a frogspawn.\n \nOne of the zoas was in the bottom 3rd of my tank and stopped opening. I recently moved it to the top 3rd, thinking that maybe it wasn't getting enough light. The thing is, it has nearly stopped opening all together now. I noticed yesterday a hard clear bubble on the rock with it. Is this bubble algae? Could this be whats wrong wtih my coral? \n \nThe frogspawn and other zoas (brown and yellow) are doing great... fully extended everyday, minus being harassed by one of my peppermint shrimp nearly all day. He actually ripped a piece of they yellow one off. Rude...\n \nAny thoughts? I'm doing a water change today, but I did one last week, so my parameters can't be that far off. I had them tested at the LFS last week and everything was gravy. \n \nThoughts?