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Thread: ID Rock

  1. #1
    Join Date
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    ID Rock

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    Hello.. I have got the below rocks from a colleague.. They look great for iwagumi scaping.. However it kind of has a "chalky powder grey surface" I have bleached it, soaked it for 4 days, rinsed it in hot water ..but the chalky slime still persists..
    Is me say it is a property of "Borneo wild rock" but am still sceptical..
    Love to hear some feedback
    uploadfromtaptalk1408721213408.jpguploadfromtaptalk1408721236361.jpg

  2. #2
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    Re: ID Rock

    The first pic look like Ohko stone,aka Dragon stone.
    The 2nd pic not sure but i had it in my tank last year .
    If you are still uncertain about the rocks do a Ph test.
    To test the composition of your rock, put a few drops of
    ordinary white vinegar on it. If it foams, it's calcareous,
    meaning it is known for its ability to both harden the
    water and increase the pH.

  3. #3
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    Re: ID Rock

    Thank you 😃

  4. #4
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    Re: ID Rock

    You're welcome

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