What is this!?

[Cregg A]

This appeared 6 months after starting the tank. I have absolutely no clue what is is. It is pink and bubbly, with anenome like features. The "bubbly" quality makes me want to rule out aptasia. Please help!

 

[Starblenny]

Interesting. I used to have Hair Algae but then cyano came and covered the hair algae and it sorta looked like that...

Closest thing other than the Hair Algae + Cyano is "Callithamnion" aka Cotton Candy Algae...

 

[Sniperhank]

Might need to fix that problem asap.

 

[leftyfish]

Red bubble algae