Plants Growing On My Live Rock

[OfcrReef1]

Hi all, thanks in advance for any Information on this. I have burgundy plants popping up everywhere on my live rock.

Has anyone else seen these on their rocks before. I honestly don't mind them right now they are colorful and very unique looking just hoping they don't become a problem in the future.

 

[Daddy-o]

I think they are going to get out of control and I would eradicate them if it was my display.