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Question about KH and GH

Discussion in 'General Plant Topics' started by hani, Jan 25, 2009.

  1. hani

    hani Lifetime Charter Member
    Lifetime Member

    Jul 27, 2007
    Likes Received:
    Local Time:
    10:20 AM
    Can someone help me to undersstand, my tap water GH 4.5/KH 4, I do 50% water change on my 29g tank, i use EI, and add 5g of GH booster. my tank GH 6 and KH 2? how come the kh is lower in the tank
    i use co2 30ppm
    my ph is 6.6 at night and 5.7 in am

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