Help!

[reeferaddict]

Whatever you decide to do, research it. I cannot tell you what to do, but DO make a positive diagnosis before treating. THEN definitely do NOT treat using copper or antibiotic treatments anywhere near or in your tank with snails, crabs, corals, or any other inverts.

For starters, read up on methods of getting rid of parasites or infections that are chemical free, such as salinity adjustment, freshwater dips and raising or lowering temperature, being careful to administer ANY treatments slowly so as not to stress the fish any further. If he's still eating, a rest in a place free of someone constantly harrassing him could be all he needs to recover. Once they stop eating, my experience has been that there's not much you can do after that.