Algae ID Please

[BamboozleBean]

Seemed to pop up once I started adding coral, significantly grew in the last few days. What is it? And what is a fix?

 

[45ZoaGarden]

I can’t really tell from the picture but it looks similar to blue clove. Can you take the rock out?

 

[BamboozleBean]

I can’t really tell from the picture but it looks similar to blue clove. Can you take the rock out?

It almost does yes, but it’s no doubt algae of some sort.
It’s gray and furry.
And yes the rock can be taken out, it’s just be a huge pain.

 

[reef lover]

Need a better pic but resembles hydroids.