On Fri, 25 Feb 2005, it was written:
On another note, as I understand it, pH and hardness are separate measures. Are there any fish that prefer alkaline water that is soft, or is in nature alkaline water always hard?
Though pH and hardness are separate measures, they're not really indepentend. Hardness influences pH. Alkaline water is normally inherently hard, as it's the hardness (in particular, dissolved carbonates) that raises pH.
By contrast, though, acidic water can be soft AND it can also be hard water with a lot of CO2 dissolved in it. Think seltzer water. Lots of minerals, but acidic.
- Erik -- Erik Olson erik at thekrib dot com _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member