I’ve noticed what at first seems to be dirt floating on the water after a bad rain storm or wind storm but when I got closer it looked like thousands of little flea like bugs. All my chems are spot on. I realize we aren’t swimming with the pool water being around 50 degrees. The pool runs about 10 hours per day still to keep things flowing. Filters are clean. Skimmers are clean. Is it simply because the water isn’t being agitated enough? Is it a precursor to an algae bloom? Once I scoop them away (collects like fine dirt in my slimmer basket or net) they generally don’t return unless there is heavy rains. Just curious if anyone else sees them and if it’s nothing to be concerned with. Thank you.