Hi trigger40, I actually do have a quarantine tank, but it's salinity is way off the mark and there is nothing in there right now. It's been set up for months now, and filtering too! If I can catch the wrasse, should I just empty it out and refill with display water?
Jay0705, it's just a bump! No discoloration. Long story short my parents went to Hawaii about 30 years ago and came back with a small decorative piece of white coral (also in the pic) and that's where he is sleeping at night, but if he's accidentally brushing against it I will take it out!