lyretail anthias bacterial infection?

[SeeFu]

Any idea what this red spot is?

This is currently in QT w/ a basslett Anthias, Hippo Blue Tang, and Yellow Tang. No aggression that I can see in the tank. the lyretail seems to be eating just a small amount compared to the other 3.

QT is current in the middle of a General Cure & Metroplex medication cycle. I believe i'm on around day 10.

 

[C. Eymann]

New addition?
How many do you have? are you seeing much agression between them? Did you QT?

Could be a trauma injury or could be Uronema, Uronema is very common with anthias.