I thought about getting a six-line when I was at the store yesterday, but am a bit leery as I know they've caused problems for a lot of people. My main questions for the six-line are (1) will it bully my tail-spot blenny or my chromis (I don't want to add it if it will), (2) will it go after my cleaner shrimp, (3) how would it get along with a fairy wrasse if I added the fairy wrasse after the six-line?