What kind of algae is this?

[Tyguy35]

I thought it might be hair but it seems to thick? It’s only growing on my gsp.

 

[Mikedawg]

I thought it might be hair but it seems to thick? It’s only growing on my gsp.

I think there are several hundred different species of algae commonly called "hair algae." May be Cladophoropsis

 

[Tyguy35]

It almost pops in the fingers when I pull it off.