How else to do battle with hair algae

[marie]

astreas are good for the glass but in my experience they very rarely go on the rock, cerith keep mostly to the sand and i have never had any luck keeping margaritas for any length of time. Turbos seem to make the most obvious dent in the algae.
I haven't had any experience with sea hares but I've heard they are wonderful algae eaters maybe you could borrow one from somebody for a few months