Lunar wrasse experience?

[Dresden]

well i spent about 6 hours reading about niger Triggers and lunar wrasses. Wrasse obviously will need to go. Wondering if anyone has tried to train a trigger. Example when u see the trigger do something u dont like u puff up say a bathrobe(open it quickly) and show him u dont like what he's doing? Basicly showing him, "my tank i'm the biggest fish here".