I'm about 24 hours into fermenting my first IPA in a carboy using Safale-04. The fermentation is going well but I noticed small particles floating around in all directions. My best guess is that these are either clumps of yeast or hop particles (maybe both?) that are being moved around by the CO2 being generated by fermentation.
It might be hard to see but they are the small areas in this picture and they move around almost as fast as I would expect in boiling water:
Is this fairly normal for fermentation with a highly flocculative yeast or a larger amount of hops? Or maybe this just a really aggressive fermentation?