Encouraging an RBTA to move where I want him

[Delphinus]

I don't know if I really recommend this unless you're very desperate, but, in times when I have really really needed a BTA to be somewhere else, I took a really small powerhead (like a minijet or rio 60 or something, you know those itty bitty 2" jobs that are good for not much), place it nearby, and aim it pretty close to the anemone (try to avoid aiming it right at at the anemone since a direct stream output can cause injury). But the flow pattern will usually make them walk away on their own.

I have generally had good luck though, getting BTA's to stay put where I put them (within a certain margin, however). I find if they have a spot that matches what they're looking for, they're not too apt to wander. They are looking for a cave, crevasse or overhang that they can sheild their pedal disk from direct light and current, i.e., they seem to only prefer the tentacles out into the light and current, so also they need that spot to be nearby to some decent flow so that they can easily reach into it (and pull out). So if you can arrange your rock such that you can create a spot like this out in front, you should have some luck getting them to stay there.

HTH