Trying to find out what this may be, I came home today and seen this marking on my tang. He’s eating fine and pecking at the rocks as usual. Parameters are fine and nobody is aggressive clowns maybe but usually to the fire fish. Have chromies and pajama cardinal also. Also a Bta, torches, hammers, zoas, leathers, mushrooms and frogspawn. Is it a tang ich? Or possible sting? I was told torches may have stung him, any thoughts to what is happened to him? Should he be quarantined? Thanks for looking and any help you may have!
