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Old 04-20-2014, 02:11 AM   #491 
LittleBlueFishlets
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Hi Daniella,

Potassium permanganate is an oxidizing salt that is very effective for external issues. However, Mycobacteria often infects the fish internally as well as externally. It's thought (from the little that I've been able to find written about it) that the "graphite" coloration of the fins probably occurs due to tissue death as the internal organs begin to shut down.
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Old 04-20-2014, 06:37 AM   #492 
daniella3d
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I see, I was just wondering if anyone tried the PP treatment and if it was effective or not.

I had no idea that organ failure could cause the fins to die like that. I would be more thinking of dropsy or something similar.


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Originally Posted by LittleBlueFishlets View Post
Hi Daniella,

Potassium permanganate is an oxidizing salt that is very effective for external issues. However, Mycobacteria often infects the fish internally as well as externally. It's thought (from the little that I've been able to find written about it) that the "graphite" coloration of the fins probably occurs due to tissue death as the internal organs begin to shut down.
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Old 04-20-2014, 10:22 AM   #493 
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That's been one of the problems. Myco presents in varied ways. The bacteria has a slow growth rate. Therefore, it's often considered a wasting condition where the fish loses overall condition. There is often not anything definitive that someone can point to and have an "Aha, I know what I'm dealing with" moment.

Sometimes, people notice lesions, or bloating, or dropsy, or other signs. Other times, the condition causes stress on the immune system, allowing secondary infections to set in. As a result, the fish dies from Columnaris or another disease.

As for the graphite fins, I suspect that as the organs die, it's the extremities that are affected first. For people, that would be feet and hands. For fish, it would be fins.

One of the issues with using antibiotics and/or other treatments is that they aren't effective against Myco. (It has a waxy coating which protects it.) But using antibiotics will kill the competing bacteria in the tank. This allows the Myco to have better access to nutrients, which actually promotes its growth (although it continues to remain a relatively slow growing type of bacteria).
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