Powder brown tang dead

[clucasepps]

No signs of illness all other fish fine , no spots , nitrate was just a little higher than norm and tank established 2 years? Common causes?

 

[vetteguy53081]

No signs of illness all other fish fine , no spots , nitrate was just a little higher than norm and tank established 2 years? Common causes?

Its hard to say without more history and pics. If fish was eating and breathing normal right up to point of death.
Any signs of injury, agression or skin issues, etc

 

[Jay Hemdal]

No signs of illness all other fish fine , no spots , nitrate was just a little higher than norm and tank established 2 years? Common causes?

Without some symptoms, we really can't tell you much. Fish can die and show no symptoms in advance, but that is pretty rare. More often, there were subtle symptoms that just got missed leading up to the fish's death.

How long did you have the fish?

Here is a link to the information we need in order to evaluate fish disease issues:

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Aquarium Fish Disease Problem Solving Determining the best course of action for a problem with your aquarium can be a difficult task. Even advanced aquarists will often need to seek the help of others for complicated or unique issues. Our intent here on Reef 2 Reef is to offer expert advice...

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Jay