Hitchhiking coral(?) bouncing back, could use an ID

[Sleeman]

Originally it was a full dark pink color, but after two weeks of the lights being off it "bleached" I believe the term is. In the last two weeks you can tell the colors starting to reappear which is great, but the heck is it?

 

[bday1335]

From these images it appears to be a clump of coralline algae.

 

[hds4216]

Agreed, coralline algae.

 

[Sleeman]

Huh, that does look to be it. Googling "Pink Blob" wasnt being very helpful, thanks.

"It is a desirable algae to have in a saltwater aquarium and its growth is an indication of a properly matured marine fish tank", so that's good