I accidentally used a half dose in my reefbowl, and I concur with prsnlty that it doesn't seem to be enough. I added another half dose three days in.
Now it's six days in and it doesn't seem the fluconazone is taking effect. I still see several little strands of algae and they are green, not white. The snails are pretty thorough, so if it were dying, I would think it would be disappearing faster. (FWIW I've been controlling the bryopsis with weekly peroxide spot treatments, so I don't have any huge patches to show. There will be no dramatic before/after pics)
Tomorrow is the day I usually do a weekly 100% water change. I'm not sure how to proceed. I could skip the water change and add another full dose of flucon, or do the water change and dose flucon after. If I do the water change, it will allow me to treat the algae with peroxide--a form of insurance in case the flucon doesn't work. If I don't do the water change, another full dose could make for a larger cumulative dose of flucon to destroy the algae for good. What do you guys think?