RIJohn, what CUC organisms did you use?
I am dealing with a terrible hair algae outbreak. This stuff is all over my tank. (I blame this on the fact that have been using reef crystals that were sent to me insted of the Instant Ocean I ordered, but that is probably just superstision).
I have never had such a bad algae problem before. I use RO/DI, I feed very sparingly, and I change the H2O about 30 gallons a week on a 120 tank. I always feel like I have a lot of experience in this hobby and that I have many answers, but I have been fighing this algae for months. I'm almost ready to tear the tank down. I moved a lot of rock into my sump and turned the lights off underneath. I remain in algae hell though.