My new BTA tried to feed itself to a MaxiJet ph from which it dislodged the protective cap. I have since glued the cap in place, and the anemone has moved behind the rockwork so that I can see only a very small part of it. It has been there for 4 months now, and its clownfish isn't happy with the location, and neither am I, but at least it isn't in the powerhead.