This stuff is taking over my tank now that I look closley, I am upgrading my lighting in a few days. How do you know what is out of balance? I use flourish and excel as directed and am upgrading from a Fugeray to a planted plus, I am hoping that new lighting won't make it worse but will allow my plants to use up the nutrients better. I will be adding some cherry shrimp soon also, do they eat this stuff? I know some forms of algae are a delicacy for certain aquatic life, I have seen my dwarf gourami nipping at the stuff.