(Posted this elsewhere while the forum was down, but not sure I got much useful feedback, so posting here.) I made a starter of Wyeast 3724 (a low floccer), about 24 hours on a stirplate, and then cold crashed in the fridge. Now, a few days later, there are little 'balls' of what appear to be yeast that are shooting to the surface and then disintegrating back into the starter wort/beer. Some of the balls look like they have 'tails' as they are rising, but I think that's just a stream of yeast cells breaking off from the balls as they rise. This is happening at about 40F in the fridge. I've never seen anything like this. Any ideas about what would cause? TIA!