Need help can't identify whats wrong with my fish!

[Hozat24]

Hello everyone, I really hope someone can help me out over here! First of all I have noticed black coloration has formed under the hippo tangs eyes and im not sure why. Second there is a brown dot on my yellow tang which I can't seem to understand how it happened. I have circled the problem areas on both fish in the photos below so you guys can see what im talking about! Both fish are swimming fine and eating normally. I feed 2-3 times a day. Just trying to be cautious by sending this out just in case there is something I am not seeing that can be developing into something worse.

 

[Hozat24]

Hello everyone, I really hope someone can help me out over here! First of all I have noticed black coloration has formed under the hippo tangs eyes and im not sure why. Second there is a brown dot on my yellow tang which I can't seem to understand how it happened. I have circled the problem areas on both fish in the photos below so you guys can see what im talking about! Both fish are swimming fine and eating normally. I feed 2-3 times a day. Just trying to be cautious by sending this out just in case there is something I am not seeing that can be developing into something worse.

Sorry photo quality is not the best my fish are camera shy!

 

[Big G]

Is the brown dot flat or is it raised a bit?

 

[Hozat24]

Is the brown dot flat or is it raised a bit?

Its more of an indent not flat or raised

 

[Big G]

Indent would perhaps indicate an injury where as a bacterial infection is flat or lympho is raised a bit but can be below the skin too. It bears watching for sure.