My Lawnmower Blenny and even my Coral Beauty love the algae. Also have Mexican Turbos in the reef tank.
In my predator tank, my Pencil urchin and Pincushion urchin do a killer job. (like a PP said they will eat Coraline after the hair and other algae runs out. I turned my light timer up and let the hair algae grow in there so they don't run out of food, but they almost always keep up very well!)