Bangaii Cardinal Blemish

[sunny]

This past weekend I purchased two Bangaii Cardinals. They are currently in QT. I noticed on the same day we placed them in QT that there was a blemish on one of them on the rear top quarter of it between the body and tail. It is eating well and swiming around fine. Should I be concerned.

 

[sepulatian]

I honestly don't see anything. If he is still eating and acting normaly I would not be concerned. The first clue to a stressed fish is that they stop eating or acting enthused at the introduction of food to their tank.