Acan issue/concern

[Richardmclendonjr]

Is this Acan just growing new skeleton or is it a bigger issue? It’s got these tufts on it that don’t blow off if you gently try to blow water at it.

 

[Arielneedscoralsanon]

Are you able to take a closer photo? Maybe I’m just missing what you’re talking about

 

[NAS]

I would dip in some lugols iodine. Doesn’t look like new growth to me.