I have one large nice Tonga branch rock with a few aiptasia. The rock is cemented to aquascape. I have already treated a few times with aiptasia x without any benefit. Seems to only cause aiptasia to temporarily recede. They are only located on this one rock. Am I better to cut my losses and separate it from the aquascape and sterilize. Not sure about peppermint shrimp or nudibranches given it is only about 3 or 4 aiptasia but I just can’t seem to get rid of them.