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  1. #1
    Senior Member wayn496's Avatar
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    Ok what should my kh levels be at?

    I just baught the KH test and I would just like to know what my levels should be at? I just did the test and the levels are at 10dkh or 179ppm. Should this level be higher or lower? I have shrooms, star polyps, frogspawn, xenia and an anenome.

  2. #2
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    Which brand of the kit did you buy? Was it specifically for saltwater?
    Nick

  3. #3
    Senior Member wayn496's Avatar
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    its an "aquarium pharmaceuticals kit" for fresh and saltwater. I know it is not the best but it was the only kind the LFS had in stock. I havn't been able to find the actuall ppm which is required. I see a few levels on here but they are always people asking the same as me. What would be the ideal KH level?

  4. #4
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    I understand 8-11 dkh is the best range so 10 sounds good.

  5. #5
    Senior Member wayn496's Avatar
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    great thanks!

  6. #6
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    The reason I asked about the kit is that there are several kits which measure things which look like KH but are actually quite different (e.g. general hardness). The kit you have gives Ok readings.

    But, the focus should be on 'alkalinity' rather than 'hardness'. Alkalinity is not a high pH (an alkaline solution). Rather, it measures the capacity of water to buffer acids which are added to it. The level of alkalinity is largely mediated by carbonate and bicarbonate. However, the amount of carbonate and alkalinity are not exactly the same (although nearly everyone treats them that way).

    The three measures of alkalinity are: meq/L, ppm and dKH. The conversion is:

    meq/L = ppm/50
    meq/L = dKH/2.8

    As Hendu says, dKH in the 8-11 range is fine.

    if you are interested in more about this (farily technical reading), try here: http://www.advancedaquarist.com/issu.../chemistry.htm
    Nick

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