Need help identifying algae??
 

been having some issues identifying an algae. Tank is about 10 months old, didnt have this problem for nine of those months. No real changes to encourage the algae either. Description of algae is as follows: growing in rock and fans, green brownish in color, hair/moss type, tough to manually pool off of rock.
My assessment is that's it's green hair algae but every pic I see of green hair algae it really doesn't match.
I appreciate everyones help.

looks like hair algae. but the pics are bad. i have some in old tanks as well. i think it comes in on live rock/corals