I bought a BTA a number of months back. At the time, he was about the size of a silver dollar. I have had him for a good 6 months I'd say. He is now a good 10-12". His "bubbles" do not exist. He has more of the tentacle type arms. He is very large and happy. I feed him every other day (scallops). He has not ever split on me, and he hasn't relocated either. The day I got him, he found a home, and he has stayed in that same place. The only issue I am running in to now, is he's getting too tall, and he's within inches of the surrounding corals.
So I am now at the point, do I sell him off (or try to), or do I move all my corals away from him. He's definitely cool to watch, but he is taking a whole corner up.
I have the opportunity to get a RBTA. I really want that one. I think on that one, I'm going to try not feeding it and see how it goes. Or if I do feed it, it certainly won't be every other day. Growth is good and makes me happy, but tank take over, not so much.