i couldn't say for certain who would win regarding your current coral and the rbta, but you can bet if the rbta moves to within striking distance of the coral someone will lose. this is the risk that must be assumed when mixing coral with anemones. however, rbta seem disinclined to move once they have found a spot that is to their liking. if your corals are relatively small and on frag rocks or plugs, then i wouldn't worry about it too much, you could easily just move the coral around until the rbta settles in. but if your coral are all attached to large rocks then you may have trouble since you won't be able to move them away from the anemone.