Flame angel has whitish color around gills and mouth, been like this a while and acts completely normal y. What is it?

[Jack_10218]

 

[Jack_10218]

my flame angels looked like this a while, acts and eats normally, grazes algae, (nips corals$ ect. But I want to know what this is and how I can treat it.

 

[ZoWhat]

Maybe a kalk addiction.

 

[bruno3047]

If he’s not gilling rapidly, then it’s probably lymphocystis. It’s a viral infection that comes and goes, usually appears when the fish is stressed. It only becomes a problem if it impedes his ability to eat. Otherwise ignore it. It’ll go away on its own when he’s more comfortable. Please note the phrase, “if he’s not gilling rapidly.”