I'm ferementing a saison with Wyeast 3724, and after the initial ferment, it died down, I then bought it into a warmer room and chucked some blankets over it (I'm also using an aquarium heater, but that alone wasn't working). I checked on it last night, and it seems to have fleks of white on top, as well as a thin film. The smell is also rather funky (I guess this is usual for a Saison). Here's what it looks like:
Is this usual for a saison, or have I got an infection on my hands?