Well, I'm seeing blue this morning!!! (Though I still can's see the bottom) Woo-hoo. It still fell to 16.5ppm over night, but it's blue. I'll keep the #'s up today. Maybe this will be the last day/night of this, I'm sure making a lot of trips to Wal-Mart for bleach.

I'll report in tonight or tomorrow with updates.

Thanks sooooo much for your help. I see a "blue" light at the end of the tunnel.