Are the fish wild caught from a local fish store?
I bought a red line wrasse, wild caught, 6 months ago. I dropped it in and saw it swimming for a few minutes..... then poof never saw it again. 4 months ago I bought another wrasse, yellow coris. The yellow coris was bought from a hobbyist who had it for a while in his nano cube. Dropped it in did not see it for a few days, so I thought it would be like the other wrasse. I told my reef buddy "Another $10 down the toilet". I went to a store and bought a Hawaiian cleaner wrasse (impulse buy without doing research :)). It did not come out the next day. I called my reef buddy and said "There goes my $40". However, the cleaner wrasse came out after hiding for 4 days. The yellow coris also came out after 1 week of hiding. Of course I called my buddy and said "The $40 came back and so did the $10" :)
I still have those wrasses today. They don't like each other very much; the cleaner used to bite and chase the coris once in a while, but that is a different story.
If you are new and happen to have a few reefers around, I suggest you buy "used" fish. They are 100% better in survival and there is no need for acclimation which sometime cause more harm that help for a beginner.