Yea I was pretty sure that between two Hawaiian flames a pair of exquisites and a yellow coris that these would have been gone. I even had a pair of MC koskers for awhile while this infestation festered. Maybe thats what took so long to become a problem . When I would siphon them off with the turkey baster I would let a couple go in front of the wrasses and was surprised that even with the FWs wiggling the wrasses were not interested. I balked on the six line because I have seen them to be a little iffy on flatworms and they can get pretty aggressive as they age