Can Anyone Tell Me What Cause This Deadly Diseases...

Hi,

I am from Malaysia and still new with Discus..

Can anyone tell me what is the cause of this disease..I loss many beautiful discus causes by the same disease..

I have try put Metro, Prazi, OTC, PP, Salt but all of them are not working..

Their main diet is home made pure beefheart..Is it the cause?..

Please help me..what should I do...

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That could be fungus if there was an injury there ,but I will defer to thinking it is columnaris .
Learn about using potassium permanganate to cure ..