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RE: snail shells and calcium
Hi Daphne,
I tried coral to harden my very soft water last year, but found it too
difficult to regulate the quantity in the water - do an extra big water change
and you lose it all! What I do is put some powdered dolomite in the filter
(thanks to some good advice from list members!) - you need to experiment to
see how much you need to add, by testing with a Calcium test a day or two
later - I keep my water at 40 ppm, which is plenty for the ramshorns I seem to
endlessly breed! I add about half a teaspoon of dolomite for my 25 gal at
water changes. I also add enough Equilibrium to keep the GH nearer 8-9
degrees; I add a tiny bit of baking soda to keep a KH is about 3-4 degrees in
my guppy tank, giving me a pH of 7.4-ish. My tap water is around 5.5 - 6.0 in
pH, zero everything else.
Hope that helps,
Susi Barber
Vancouver