The Florida Flagfish is the best hair algae eater. A bit aggressive but it will flat out clear a tank of hair algae. I'd have one if I didn't have guppies and shrimp both of which I'm breeding. The Flagfish wouldn't bother the adults too much, but they are tough on the fry.
Free the Carbon
55 gallon 2 wpg planted dosing excel with guppies, and shrimp
90 gallon mixed reef with clowns, gobies, and cardinals
150 gallon african cichlid tank with clown loaches