I have Googled this many times but really can't put my finger on if its actually an issue or not. In the picture you are able to see some whiteish spots on the back of the fish. I am just wondering if this is really an issue. Salinity is at 1.026 did a water change yesterday and checked nitrates and nitrites and they were both at 0. Other parameters also seem to be good. I also have a tuxedo urchin, cleaner shrimp and a strawberry conch. All others seem to be doing fine. I posted another thread about my other clownfish if they could potentially be related.