I brewed a batch of ahs midnight stout last week right before I bounced to see famaily for a week. I did not make a starter and I don't think I aerated as well as I should have. It must have been colder in my apartment than I thought it would be. There seemed to be little sign of bubbling while i was gone in my blow off. I know that's not really agood indicator so I took the lid off my bucket to check it out. My fear was There would be no fermentation. There was signs of krausen but only a small ring of it on the sides like my other beers but much much less. It was also bubbling a little so I'm pretty sure the yeast aren't dead just not very active. I started heating my place and am going to see how that goes but I was wondering if i should pick up yeast nutrients or "swirl" the wort or just leave it alone. I've seen these sugestions before but not in a case exactly like mine.... I think. Also if anyone has a cheap DIY keep your wort warm tip.