Peppermint shrimp compatible with?

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Hi, I've just started to get a bit of an aptasia problem so I added 3 peppermint shrimps to try to help with this. I have a six line wrass that immediately started harrassing them when they were added. Killed the lights, waited till morning and they were all missing in action by the next evening.

Did they get eating do you think or killed by the six line?

Also have a naso tang, yellow tangs, flame angel, blennys/gobies and emerald crab. Any of these guys culprits?

BTW: they were accliminate over a couple of hours and into the 120G and the tank parameters are all perfect.