Is this Hair algae?

[redspot321]

My tanks been set up for about 3 yrs. I have just discovered a small patch of this stuff. My tang or snails dont seem to eat it.

What is it?

 

[alve]

It looks like hair algae to me. Let's see what others have to say.

 

[dp reefer]

Looks like hair algae to me as well.

 

[Tang Salad]

Is it stiff?