Update. I had thought that the tentacles found were recently attached to the new addition, the little green guy. This is not the case.

I just realized that the tentacles are being dropped from BTA2 (recently cloned from BTA1). BTA2 still looks good, although in the last two days it's deflated rather early without a feeding (typically retracts after a meal). I haven't witnessed the clowns chewing on it, but both clowns spend most of their time in BTA2.

I pulled four tentacles from the sandbed just a few minutes ago... pulled two out yesterday. At this rate BTA2 will be bald before me!

Anyone think I have to worry here, or is this kind of normal behavior?