I have my coral beauty in my 25 gal with a maroon clown, yellowtail damsel and bicolor blenny. I am very religious about my water quality and run two filters and never miss my water and filter changes.
I don't have any problems and the angel and clown are buddies, they swim everywhere in the tank together.
I think you would be okay with what you have mentioned, I have never had a six line wrasse so I cannot comment on that.
Make sure you have lots of rock for them. They like to hide if needed, mine is out all the time even when I come into the room.
Good luck, they are beautiful....