Check out my thread with Hair algae using fluconazole. it takes at least 21 days to see results with hair algae. Bryopsis goes away in about 1 week.
http://www.socalireefs.com/forums/showthread.php?89820-Fluconazole-and-Hair-Algae
http://www.socalireefs.com/forums/showthread.php?89820-Fluconazole-and-Hair-Algae