I've had my Achilles Tang in Q.T. for the last a month with no signs of distress. he has been eating well, and getting fat. I added couple of 2 inch butterfly fish separated by a partition, about 2 weeks later I noticed my tang flashing. Than a brown patch appeared on its side with a loss of some of it's color. I have been testing PH, Ammonia ( with appropriate test kit ), nitrite, and nitrate every other day all WNL. I started running Cupramine slowly bring it up. Its at .5 now, but it does not seem to be helping. I have used Cupramine before and normally it would have started showing some relief on the fosh by now. Any Ideas what this is? thx This is what the fish looks like. WEB PIC
brown patches on Achilles tang
- Thread starter dsmooth
- Start date
If running that high a copper many things should be covered against. Consider bacterial infection as top differential and then maybe a resistant protozoan (uronema, brooklynella) or flatworm (neobenedinia). WHy is everyone running .5 cupramine ( I guess that's what the bottle tells as the standard dose?), that's runnin awfully close to the danger zone for lions, mandarins, seahorses, dwarf angels, and butterflies...and any other immunocompromised fish. This stuff works at .18 so maybe keep it at .25 if possible? I'd use nitrofurazon or minocycline (maracyn 2) if you don't have access to kanamycin (kanacyn by seachem). Ideally you have a microscope and lightly scrape the lesion with a slide cover to see if theres any protozoans and make sure treating abx is even warranted.
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