I have been having aiptasia popping up all over my tank in the last two weeks. I went to the LFS today and grabbed two peppermint shrimp to take care of them. I swear that already several of the dozen aiptasia I had are gone, didn't really expect them to be going this fast. Now the question is, what do I do with the shrimp once all of my aiptasia are gone? I just have a 14g biocube. Should I just return them or keep one / both of them?