BTAs are the best anemones to start with, but they tend to wander and CAN sting and kill corals in their path. I lost several colonies of SPS and LPS to wandering BTAs overnight before I started limiting the nems to their own free-standing bommies.
If you can, I would recommend rearranging the rock in your tank so that the anemone has its own little island that is not touching the walls of the tank or any other rocks. They tend to avoid the sand so unless the conditions are really bad, they'll find a place on their island that has the light and flow they want.