I purchased two Peppermint shrimp roughly two months ago for my aptasia outbreak. I'm not sure if they are even going after the aptasia because more and more are popping up. I purchased six medium Berghia from Reeftown, they arrive next week. I have read that Peppermint shrimp will eat the Berghia, is this true? Do I need to try an catch the peppermint?