Anyone know what this is? Microscope pics inside

[Turbonut]

Have this weird growth popping up, appears to look like hair algae but comes off Rock with little effort.

I should also point out nothing eats it. Thanks for looking hopefully someone might know

 

[P-Dub]

Got the close up for sure. How about an in-tank shot and perhaps something to gauge size?

 

[Turbonut]

Got the close up for sure. How about an in-tank shot and perhaps something to gauge size?

I’ve removed as much as possible so nothing to take pic of at the moment, however it appears as hair algae