Need help identifying...

[lpn4]

I noticed a couple of days ago that there are two "surprise" growths on the underside of a piece of live rock. I have researched this, but cannot find anything close, only discussions of red algae. Is this algae growing? Is it dangerous to my fish or other coral? The picture is a bit blurry, but I wanted to get the cameral close, without taking anything out of the water, or disturbing the rock.

 

[mr_X]

No picture attached.

 

[lpn4]

redo...thx.

 

[mr_X]

There is a type of branching coralline that resembles what you have there. That's not dangerous.

 

[lpn4]

You may be right, since, from what I just read, the dark red coraline algae prefers lower light, and these specimens are growing on the underside of my live rock. Awesome. Thanks.