I have had a BTA for about 6 weeks now and it seemed to be doing great. My stubby Ocellaris started to host it within 3 days and everything seemed to work out great. Last weekend I did a 10% water change and replaced the airstone in my protein skimmer and turned it up a little. It seems that since around that time the BTA just seemed to look deflated. When the clowns weren't around it was just closed up most of the time and looked almost as if it were splitting. When I first got it, I set it right on top of the rocks and it moved into an overhang with just its tips in the light. Well last night it looked deflated and this morning it was in a different spot almost directly under where it was before. It may have even fell because it looked like I could see the bottom of it. It seems to have planted its feet but it is still deflated. I did a 10% water change, and turned down the protein skimmer a little. Any ideas of whats wrong? I have a 29g Biocube HQi with 150 Watt, 14,000K. Gravity of 1.026, Nitrate-20, Nitrite-0, KH-280, and PH of about 8.4. I have had the tank for about 10 months and the temp stays about 77-81. With 10% water changes every week.