I might be able to get some info on the water down at the town hall. I live in a really small town in central Newfoundland on the ocean.

I cut the lights down to 6 hours for now until I get my ferts because I noticed after just one day, algae forming on my hygro. I don't want to let it get a foothold again.

I'm going to see if I can find any info on the internet about what else could be in the water here. We have a constant problem with blue residue in the bathtub and sinks, I thought this was from copper leaching from the pipes but I'm not really sure.