What are these!!!

[supmar85]

hey guys can you help me identify this algae, it looks like purple bubble algae but don't know, if you guys know, how do i get rid of it, emeralds are not working. thanks in advance

 

[ZoAcan Princess]

oh my goodness, what are those?!?!!!!

 

[star27624]

Red bubble algae. Carefully remove them with out bursting them. I would take the rock out of the tank if possible to remove them. Then rinse well to remove any spores that may have been released in the process.

 

[stunreefer Verified Sponsor]

They're the devil, Botryocladia skottsbergii. See this article: 'Bubble' Alage: Selected Descriptions, Controls and Comments by Horge Cortes-Jorge, Jr. - Reefkeeping.com