Brewed up a tripel last week, tasting incredible and shaping up to be the best beer I've made. I came up short on OG due to efficiency and volume. Was planning to add some sugar now main fermentation is done (3787 no longer blowing the lid off fv). It has been chugging away for a week and seems stuck at 1.020 from 1.060. I have a fresh pack of the same yeast. Should I boil up some sugar or get some Candi syrup to add now?