Algae id Please?

[Bagabaga]

This feels firm. Comes off the rock and looks scaly. I appreciate some help.

 

[Bagabaga]

Another pic

 

[Bagabaga]

Did I post this in the wrong place?

 

[GTR]

Hard to tell but it looks like it could be a sponge type growth.

 

[Bagabaga]

Whatever it was is going away slowly.