05-10-2012, 07:23 PM
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Originally Posted by Olympia
Was the 9.3 pH a typo?
You do have a lot of options with soft water. Were you looking for one species, two species, a species and a centerpiece fish?
No typo, his water supply uses Alkalinity to raise the pH to 9.3 to avoid corrosion in water pipes, appliances, water tanks, etc from the soft acidic water. I have something of a similar situation here in Vancouver. Our water is even softer, at about 0.5 dGH with similar KH, and a pH around 5 or perhaps lower. So since 2001 they have been adding soda ash (sodium carbonate) and the pH out of the tap varies but mine is 7.0 to 7.2 with near-zero GH and KH. So in the aquarium it lowers fairly quickly. My tanks run around pH 5 except for two that I deliberately buffer with aragonite to keep the pH at 6.4 and 6.8 respectively.