Help ID Please

[VVolfe]

This has been growing in my tank in my plug graveyard. I circled it in the top pic from today. The other pic is from 11/13, just a few weeks ago. Sorry for the bad pics.

I haven’t seen it move but it is definitely getting bigger.

 

[GHOSTLY]

I had this too growing in between my zoas. I was told it was a mushroom but I honestly am not sure

 

[WheatToast]

Red bubble algae (Botryocladia pyriformis and Botryocladia skottsbergii). Botryocladia without a stem is a pest.
https://www.reefcleaners.org/nuisance-algae-id-guide
https://content.invisioncic.com/Mna...mush.jpg.61f47c3829e6823bf72279877d5d654b.jpg

 

[VVolfe]

Red bubble algae (Botryocladia pyriformis and Botryocladia skottsbergii). Botryocladia without a stem is a pest.
https://www.reefcleaners.org/nuisance-algae-id-guide
https://content.invisioncic.com/Mna...mush.jpg.61f47c3829e6823bf72279877d5d654b.jpg

Thank!
That pic does look like it. I would have never thought it was bubble algae since it looks so solid; can’t see it’s a sac like the green version.