I had a few and was so worried. Thought I had a peppermint shrimp but come to find out it was a coral banded. Any way I noticed all my aiptasia are gone. I don't know who got them but someone did. I also have a sally light foot crab, some cleaner crabs, and snails. I didn't think any of these guys eat the pest but someone obviously had a taste for them. Just leave them if they do go crazy you want to get rid of them you can.