Apparently, my tap water Ph is high. When I had my water tested last night, the Ph was 8.4. I had done a water change in the morning, and did treat it with "Aqua Plus." Is there another water conditioner that is good at reducing Ph too? The guy's at the store (who have the same water as I do) were not very concerned. I did look at the stores "wood" but it is large and not inexpensive. I don't want to dump additional chemicals into the tank unless absolutely necessary. Any suggestions or comments?