[DrHank]

You've gotten some good help so far and there are only two other things I can add. First, 2-3 days without lights on your tank will help to temporarily reduce the amount of cyanobacteria. It isn't a solution but a way to reduce the amount temporarily. Second, a good clean up crew will go a long way in helping to reduce the problem. Several of our sponsors can help you out in that regard. Good luck.