I bought a BTA about 5 weeks ago from the LFS. It was looking good for the first week in my tank. My Maroon clown went right for it and it stayed away from the blue carpet. Then about 4 weeks ago it went under the rock that it was staying on. At night it would shrink up then during the day it would be fine. Then 3 nights ago i was looking under the rock and saw that it was only hanging on by a small portion of the foot. The rest of the foot was just floating in the water. I was not able to get a picture of the foot since it is in a tuff place to take a picture of. Please let me know if you think, also it is under about 200 lbs of rock so taking it out is probably not an easy option.