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The hardness of water can be just as critical to the well being of an aquarium as pH. In fact with many fish it can mean the difference between goo...
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$39.99
The hardness of water can be just as critical to the well being of an aquarium as pH. In fact with many fish it can mean the difference between goo...
View full detailsThe level of Carbonate Hardness is the basis for the value of the pH in a given sample of water. Carbonate Hardness of water must be maintained for...
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