Hey jumping in here...don't mean to hijack the thread, but, I am having an infestation of vermatid snails. I have been kicking around the idea of a halichoeres sp.
I had heard that 6-lines could be very aggressive...
The only thing I worry about are my two cleaner shrimp...the are big...but would a yellow coris wrasse go after them? I love my shrimp.