Editing KH
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*[[Potassium bicarbonate]] (KHCO<sub>3</sub>) is another KH additive. It's cheap. But not so easy to find, it's a specialist food additive for people who don't want sodium in their food. It will however raise [[pH]] for the same reason just described. It dissolves much faster than the Potassium or Calcium carbonate powders. | *[[Potassium bicarbonate]] (KHCO<sub>3</sub>) is another KH additive. It's cheap. But not so easy to find, it's a specialist food additive for people who don't want sodium in their food. It will however raise [[pH]] for the same reason just described. It dissolves much faster than the Potassium or Calcium carbonate powders. | ||
− | *[[Potassium carbonate]] (K<sub>2</sub>CO<sub>3</sub>) A known food additive. This adds carbonate | + | *[[Potassium carbonate]] (K<sub>2</sub>CO<sub>3</sub>) A known food additive. This adds carbonate and also raising [[pH]]. The [[potassium]] is a bonus if you have a planted aquarium. |
*[[Calcium carbonate]] (CaCO<sub>3</sub>) This adds carbonate and [[calcium]] so [[GH]] and KH will increase. Used by gardeners as 'Lime'. | *[[Calcium carbonate]] (CaCO<sub>3</sub>) This adds carbonate and [[calcium]] so [[GH]] and KH will increase. Used by gardeners as 'Lime'. | ||
==Reducing KH== | ==Reducing KH== | ||
− | KH | + | The ions that make up KH can be removed by boiling the water. Boiling may also reduce GH slightly. |
− | + | KH is also reduced by the action of nitrifying bacteria and by water surface agitation. | |
==KH Calculator== | ==KH Calculator== | ||
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==Notes== | ==Notes== | ||
− | + | This water parameter is often ignored by many aquarists. But too low a KH can cause [[pH shock]] disease and death in aquatic animals. | |