I have better luck with peppermint shrimp than with lemon juice, aiptasia x, or vinegar. If I am able to take the rock out and hit them with a lighter I do but most are on big rocks. Make sure the shrimp you get have dark black/brown eyes not green eyes and sway back and forth if you go the natural route. When I upgrade my one tank I am going to take my banded coral shrimp out and put in some peppermints. My BCS thinks peppermints are on a blue plate menu
he actively hunts them down I have watched him do it. I wondered why my LFS
never kept BCS with their peppermints.