Is this green hair algae?

[mistergray]

Is this green hair algae, centipede grass or Cosmo’s hair? All jokes aside, I decided it was green hair algae but every time I buy a creature that Mr. Google says will eat it, it doesn’t get eaten. Did I misdiagnose?

 

[blaxsun]

GHA (there may be a few other types of algae in the mix as well).