Algae ID?

[tehpineapple]

What kind of algae is this and what eats it?

I really hate removing rocks unless absolutely necessary.

 

[CStrickland]

does it feel slimey, or fuzzy, or like it has a stem?
does it look that brown irl?

heres a good guide, if you want to see if you can find a match https://www.reefcleaners.org/nuisance-algae-id-guide

 

[tehpineapple]

Thank you. I'll look it over. It's mainly brown with a greenish hue.