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goodfortune wrote: It depends on the anenome you choose...IME, BTAs move around alot, and if you have an established tank, a roaming BTA could sting alot of corals...
- Michael
My observations over the last 18months are that BTAs move around very infrequently (1x yr) once they have found their spot and you leave the water flow/patterns undisturbed. Until then, they will move around for a few weeks and even then move again a month or 2 latter later until they find that "spot".
It seems that adding a powerhead or changing its directional flow or adding a tunze can restart this settling process all over again.
As to BTAs "stinging" corals, my observation is that they when they expand themselves and flop over an existing coral (e.g., cap, zoa, etc.), the existing coral either receives no light or remains closed (e.g. Zoas), so that the impact is that over a few weeks this coral is either dying or receeding due to starvation. They do not sting like glaxia or other aggressive coral are known for.
Hope this helps,
Bob