Dumb Question Algae on Rocks

[TonyMar]

Hi, my UAS are working great. 10 gal and 30 gal tanks, fresh water. My two little systems are very much like SM's new build only I used some small Rubbermaid food containers.
A little algae on the glass of my 10 gal and some green algae on some of the large rocks/caves for my fish.
Will the algae scrubber eventually remove this or should I take the rocks out and scrub them down and scrub the glass?
Is there a good way to get the algae off of the rocks, some have fairly deep creases?
Thanks much, sorry if this was dumb. The UAS works great, the Waterfall on my 140 gal tank is fantastic, no algae in the tank.
Tony

[SantaMonica]

It will come off the rocks by itself.

[kotlec]

In FW it takes much longer for algae to come off the rocks by my experience.

[TonyMar]

Thanks SM and kotlec.
Patience it is.