Coral beauty spot

[Philliesphan]

Hey guys. I just noticed a white spot on my coral beauty angelfish. Does anyone know what this could be and what i can do? Pics below. It's under its gills. Thank you for your help & time!

 

[Jay Hemdal Verified Community Expert]

Tough to see clearly. It could be a bacterial plaque from some injury. Does the fish show any other symptoms? Is this growing larger? Anything else about the tank? This post explains some of the background information that can be important in diagnosing fish diseases:

https://www.reef2reef.com/threads/s...sease-treatment-and-diagnosis-section.775547/