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rebeccarollers

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Dec 6, 2002
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Hello, everyone. I've just decided to add aquatic plants to my already established aquarium. I bought a CO2 canister. It gives a KH range of 70 to 90 mg/L, however my test kit is in ppm. Can someone tell me what 70-90 mg/L would equate to in ppm? Thanks much.
 
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