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Thread: Is my KH alright?

  1. #1
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    Default Is my KH alright?

    Hi - Iíve added a DI filter to my RO system in order to get my Nitrates down.

    I use a 75:25 ratio of RO to tap water (in order to keep my nitrates around 5ppm) but that leaves me with a Kh if 2.5 and a Ph of 7.4.

    Iím worried that a Kh of 2.5 might not be high enough to prevent Ph swings.

    From what I can tell I canít increase the Kh without increasing the Ph and 7.4 seems like the right place to be.

    Is my Kh alright or should I try and increase it? If so whatís the best way to do it?

    Thanks!

  2. #2
    Registered Member + MVP - May 2020 coralbandit's Avatar
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    Default Re: Is my KH alright?

    My KH is is 2-3 and I have never had trouble .
    Water changes done on a good schedule will avoid the pH crash many speak of .
    I have never had one going on over 10 years with my water ..
    I would not increase it as consistency is the most important thing IMO.
    http://www.youtube.com/watch?v=uhFp68wjRUU
    ^^ My fish room tour by Richsfishes ^^
    Got rams ?

  3. #3
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    Default Re: Is my KH alright?

    Thanks for the advice - out of interest, whatís youíre water change schedule?

  4. #4
    Registered Member + MVP - May 2020 coralbandit's Avatar
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    Default Re: Is my KH alright?

    I change water [ 75-90%] weekly if not more often .It really depends on the tank and the fish in it .
    Some get every other day now since I am busy ,but in the winter I change many tanks daily .
    http://www.youtube.com/watch?v=uhFp68wjRUU
    ^^ My fish room tour by Richsfishes ^^
    Got rams ?

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