The algae will go away with time provide you keep nitrates/phosphates low..
Its normal as the tank is "maturing"..
And yes the "clean up crew" which would be snails,etc.. will take care of some of it.. But as stated some algae (diatoms/hair algae,etc..) is normal and will go away.. Just keep those levels low..
No need to manually remove/disturb it unless its not going away on its own as the tank "ages"