Is it possible to have two wrasses in the same tank

I agree, wrasses are a great way to add movement to a tank and second everything said before, just be careful because some wrasses are known to get aggressive, especially as they get older (this can take years). None of the wrasses mentioned so far except the sixline are known to be aggressive generally speaking from what I've heard. There really are only a couple fairy and flasher wrasses that are issues that I'm aware of, like the Scott's fairy wrasse I think.

 

Defo depends on the wrasses.