my six line wrasse is a punk, just put in a few turbo snails and a queen conch. he attacked all of them. I added some peppermint shrimp a while ago, attacked them too. Anything I put in the tank, the wrasse goes after. After a while the punk calms down and goes back to picking all the goodies out of the rock. this was our first fish and has survived numerous mishapps, don't think you can kill it.