ThanksYour yeast is on the bottom. Usually, it is on the top, but not always, as you're finding out. Must be a pretty flocculent strain, as it settled before the majority of the trub. Not a big deal, though. Store it as-is in the fridge until you're ready to make a fresh starter from it. Decant most of the liquid and dump all the slurry (light and dark) in the starter vessel and you're good to go. It should keep for at least six months just as it is, probably longer.