> It will be interesting to see what the kH at the springs is when next
> someone get a chance to get out there. It is logical when one considers that
> the springs chemistry is based "soda".
The springs are high in sodium bicarbonate, hence yes, it will be quite
high. One could easily get a minimum estimate by dumping sod. bicarb into a
cup of water, as you add more the pH will rise to 8.2, but as more is added it
will fall back to 8.0. If you took a kH reading when the pH first drops back
to 8.0 it will at least provide a minimum value. The springs are usually
around pH 8.
Mind you, I never had these problems in Melbourne water with the wild fish
which is low in almost everything. But they were wild fish cf. those raised
in captivity at lower kH.