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Originally Posted by GrandeGixxer  That has long been debated wether a sandbed which is for the most part "idle", has any effect on the buffering capability of the system. |
It would depend on the type of sandbed. Deep sand bed and shallow sand bed react differently.
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| IMO, a sandbed is more useful as a media for bacterial filtration.
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Any sandbed or porous media is a media for biological filtration.
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Most aragonites don't break down until the pH has been dropped down to around 6.5 or so, which is why we use Co2 in oue r Ca Reactors.
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The
pH of a sand bed varies. A
pH of 6.5 in a deep sea bed is common
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Since the pH in our tanks is hopefully higher than that, I wouldn't expect any buffering to be done by your aragonite sand bed.
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It is not expectation, but simply reality based on chemistry. Run a tank with
aragonite and a similiar tank with riverbed gravel and tell me the results.
