I made a beer a couple months ago that had me add sugar to the secondary.it didn't seem to reactivate, not much krausen. I went ahead and carb'd it. Now it tastes real sweet. Now here is my conundrum, I want to add yeast to try to dry it out but since it's carb'd I can decarb it and add yeast but, since there is no o2 in it the yeast won't be happy. I don't want to o2 it because of oxidizing it, what shall I do?