Coral/Algae ID Help

[Reginald Reefer III]

No idea what is growing very actively on one of my acan colonies. They are bright blue and fluoresce under actinic. Any ideas? It's starting to take over the colony and want to make sure it's not a pest.

Thanks!

 

[Dan_P]

No idea what is growing very actively on one of my acan colonies. They are bright blue and fluoresce under actinic. Any ideas? It's starting to take over the colony and want to make sure it's not a pest.

Thanks!

I can’t tell whether it is Caulerpa or Bryopsis.

 

[reeftivo]

looks like bryopsis to me

if that's the only piece then get it out and dip it in fluconazole.

 

[Reginald Reefer III]

Thanks!

 

[reeftivo]

Thanks!

more info on battling it
https://www.reef2reef.com/threads/bryopsis-cure-my-battle-with-bryopsis-using-fluconazole.285096/