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  • Results 1 to 5 of 5

    Thread: Is low KH / Alkalinity in mud ponds a problem?

    1. #1
      TexasTravis is offline Senior Member
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      Is low KH / Alkalinity in mud ponds a problem?

      I have been learning the hard way that my existing pond water is very low KH so when I use it in my small 1,000 gallon quarantine pond, I get no/slow bio as well as fish deaths likely caused from ph swings at night. Before I put these fish in the big pond should I be trying to raise the KH? Not sure how to do this economically. I think my pond is roughly 400,000 gallons.

      Thanks!

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    2. #2
      audioenvy is offline Supporting Member
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      When I was in Japan last year, we got permission to measure the water in a mud pond with a TDS tester. It measured 40 ppm. While we did not test KH, I would be shocked if it were higher than 1-2 drops.

    3. #3
      TexasTravis is offline Senior Member
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      Quote Originally Posted by audioenvy View Post
      When I was in Japan last year, we got permission to measure the water in a mud pond with a TDS tester. It measured 40 ppm. While we did not test KH, I would be shocked if it were higher than 1-2 drops.
      I have definitely read somewhere that Japanese mud ponds had low KH.

      After doing some google, it does look like a lot of recreational bas/fishing ponds suggest monitoring KH and making sure it is >50. To do it economically, it looks like they are using lime. https://edis.ifas.ufl.edu/fa028

    4. #4
      TexasTravis is offline Senior Member
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      This article also gives a list of the recommended lime types to use: https://www.aces.edu/blog/topics/fis...-to-fishponds/

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      TexasTravis is offline Senior Member
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      For anyone who cares, I think I will simply use gardening lime from Lowes for my pond. I an get about 20 of these bags for under $100! https://www.lowes.com/pd/Timberline-...lancer/3058417

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