Is this green hair algae? if not can someone help me recognize this?

[machwave]

Hello folks there is some green stuff on my corals and my lice rock.
Can you help me recognize this? And aslo does someone know if ot is harmful and how to remove it?

 

[vetteguy53081]

Hello folks there is some green stuff on my corals and my lice rock.
Can you help me recognize this? And aslo does someone know if ot is harmful and how to remove it?

Pics a little blurry but is either film algae or cyano
Need clearer pics to verify

 

[machwave]

@vetteguy53081 attaching a clearer picture