Sand for tank

Discussion in 'Beginner Discussions' started by stripes, Apr 23, 2009.

  1. Henk Hugo

    Henk Hugo

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    the CPT water is extremely soft and acid.... it just comes out of the tap hard and alk.... add an airstone and you sill be amazed how quickly it drops
     
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  3. Zafgak

    Zafgak Old fart

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    Hey Gilbert - soft and hard refers to the mineral content in the water, normally carbonates. The cape Town water comes from a Loooong concrete pipe where it picks up its pH to around 8+ after a little settling and aeration that pH will drop to about 6. This is caused by a lack of buffering.
     
  4. Gilbertr14

    Gilbertr14 Phenacogrammus

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    Thanks Zafgak
     

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