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Re: Ca(NO3)2 vs. KNO3 (was APD V3 #697)

Hello Susan,

The effect of Ca(NO3)2 on your aquarium water will be to *increase* the
hardness, in direct proportion to the amount of Ca(NO3)2 added. 

For each part-per-million of Ca(NO3)2 added, your hardness will increase
by 0.6 ppm.



> If any lister is using CaNO3 as opposed to KNO3 I would be most interested
> in hearing your results. I'm pretty sure
> my tanks are calcium limited and based on info supplied on the list
> possibly nitrate limited. Does the calcium affect water parameters greatly?
> Thanks.
> Susan Romano