PD, IME - i kept a BTA for 2 years under VHO (not PC, VHO is admittently stronger) although the anenome moved occasionally it would usually be in place for long periods of time until i made a change to the tank that may have warranted it to move, but the last year it did not move at all. this anenome nearly tripled in size and did not split. a splitting or cloning anenome is not always a sign of a stressed anenome, but also a life process that happens for healthy anenome's as well. in any case, mine never did, it just continued to grow until i sold it at a diameter of about 18". i did not and could not keep SPS at that time, but it had no problems decimating corals that it battered with it's tentacles. corals that were not stung to death, were light choked from the sheer size of this juggernaut. as for placement, the foot was usually locked in a rock or tank wall a few inches from the sandbed, and it fully extended to upper middle tank levels. now even though these were VHO's and not PC's i had some corals survive in the upper levels, but when i put clones a few inches lower then halfway, the clones would die. I only had 2 non-reflected 72" T-12's on a 150g, so it was grossly underpowered.
