Just my two cents. I read on here it's a risk with peppermint shrimp with them eating coral. Also that it can be 50/50 or worse with them actually eating aiptasia or not. My LFS has a tank he grows aiptasia out just to drop them into the peppermint shrimp tank. He showed me. He picked up an aiptasia, dropped it into his peppermint tank and the shrimp went straight for it. I had about 15-20 tiny little aiptasia in my tank. The live rock has been wet for YEARS before I even got it. I added a peppermint shrimp, I didn't add corals yet, and within 2 days all traces of aiptasia were gone. There was ONE bigger aiptasia polyp I had, that it didn't eat, and I injected it with lemon juice. It withered and died. All other traces are gone and when I broadcast fees the tank the shrimp eats what it catches.
If you can get a shrimp that you've actually seen eat aiptasia, then it'll eat them. As far as them eating your corals, not fully sure about that. But just keep them fed I suppose, but I've also read otherwise on here.
Just my experience.
