Fishes having Cryptocaryon usually show this symptom of 'Small greyish/white nodules'
Carefully read though the article to find out whether your Red emperor is having Cryptocaryon.
Soon after infection fishes scrape themselves energetically against stones and hold their fins close to the body.
As the disease progress grayish white nodules about 2mm in diameter appear on the skin.
Respiration becomes rapid if the gills are infested.
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Red emperor sufferring from Cryptocaryon
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Copper treatment
Treatment with copper-containing compounds should be continued for at least 2 to 3 weeks to control an outbreak of A. ocellatum. Coppercontaining compounds are highly toxic to invertebrates and should never be used in systems housing these animals.
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