Hey Hunter,
I let it go to a point. I don't want it to take over the LR or any corals. When it gets out of hand, I scrape it off, and do a water change, siphoning out as much as I can. That process works well for me.
Aquavista:
Do you have measurable PO in your system? If so, I'd think that a few large water changes with PO free water, the addition of a PO sponge for now, and reduced feedings, might help you get ahead in the battle.
I know that Silica is also a documented source of food for nusiance algae, but since I don't have a Silica test kit, I can't offer a suggestion there.