Re: [APD] Water Hardness and PH

["Rachel Sandage" <rachelsor at hotmail_com>]

No, CaCl2 and MgSO4 should not affect pH. Just curious, your GH is low but your KH is around 7?

I add the CaCO3/MGSO4  after water changes - GH and KH go from around 1-2 to 5-6very quickly. I've never seen a problem.

rs
  ----- Original Message ----- 
  From: Rushui Guan<mailto:bosemani at gmail_com> 
  To: aquatic plants digest<mailto:aquatic-plants at actwin_com> 
  Sent: Tuesday, September 14, 2004 7:55 AM
  Subject: Re: [APD] Water Hardness and PH


  thanks for your help...

  I am very careful about this because I had once given my fish PH shock
  therapy so bad that, they all jump out of the tank.  A few more
  questions...

  If I am to use CaCl2 and MgSO4 instead, should it effect PH and KH in anyway?

  If I increase GH level to quick, will it harm fish?

  thanks again

  Rushui

  On Mon, 13 Sep 2004 22:15:43 -0700, Rachel Sandage
  <rachelsor at hotmail_com<mailto:rachelsor at hotmail_com>> wrote:
  > 
  > Oops, incomplete answer. I should have said I use CaCO3 and MGSO4 2:1 by volume (I use 1T CaCO3 and 1/2T MgSO4) to raise my GH from 1.5 to 5. There's a thread about this from about 6 months to a year ago which has the data I used to decide on that ratio.
  > 
  > Rachel
  > 
  > ps if that's not by volume, I apologize - I should say, by measuring spoon.
  > 
  > 
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