John Herskovits from Five Star Chemicals was just on the Beersmith podcast. Very much worth the listen. He said that the yeasties will turn Starsan into food. Although, in your case, you're at the tale end of the ferm process.
On Tap: Newtown Pippin Cider, IPA
Aging: Ceyser, Graff
Secondary: Dark Plum Sour Ale, Golden Nectarine Sour Ale, Sour Elderberry Stout
Potential next brews: Nut Roll Brown Ale, Crossover lager, Yeungling clone, APA