What type of algae is this?

[coolcomfort]

https://www.instagram.com/p/BrpVXYBH0S5/

Hello, I was wondering what kind of algae is this? I am almost certain it is not hair algae...

 

[twentyleagues]

It looks to me like hair. Well groomed....lol I do think it's hair algae though.

 

[Fat Homer]

Agree that it looks like hair algae...