I had issues w/my peppermints just a couple days ago. I noticed they kept lingering and picking at my BTAs mouth right after he finished eating, as if trying to the undigested food. Even if it didn't appear to be REALLY being harrassed that much, a rose anemone is worth wayyyyy more to me than a stupid 7 dollar shrimp, so I caught all three of them and tossed them into my sump! Not taking any chances of stress!