u/BurdenedClot

I was bad and let the water sit for too long. Got a bit swampy. I’ve changed the water several times, put a dilute bleach solution, vinegar, etc, but there’s still a scum line in the water and it seems to be like a biofilm that keeps reseeding the new water. Even with the purification tablets, within a week the water is murky. Anyone have any ideas?