Algae ID.

[H.Civic]

Hello,
Is this Hair algae or cyano?

 

[uh.oh...]

cynooooooooooOOOOOooooo

 

[Smitty]

Looks like cyano to me as well. I've been battling it in my tank since the get-go.

 

[Leighton79]

I can't see anything. Maybe I have glass eyes. If you are bothered about something on that pic, you will have no chance at putting up with scars to come down the line.

 

[Greenturtle]

Yeah, it is cyano. BTW, I would move the torch coral up onto the rocks to get better lighting. And your mushrooms look really healthy