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Re: K2SO4 and MgSO4
As someone else pointed out, molecular weight plays a bigger role in units
when considering the actual amount of K in K2SO4 and KNO3. Correct me if I
am wrong, but if you add only KNO3, aren't you adding K and N in a 1:1
molecular (not molecular weight) ratio? Whereas if you add K2SO4, you are
adding two molecules of K without adding any N at all? Which, in a well fed
aquarium that probably has more than enough N, would be a good thing?