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- Oct 2, 2019
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Was deciding between the XP Aqua Duetto and the Hydor Smart Level Controller, mostly because the XP Aqua Duetto is on sale. Any opinions?
Yes, you could do either. The second option only works if you can keep your calcium solution concentration fairly constant, however.So if I want to use my top off for the purpose of also dosing calcium, I should probably find another type? Or could I just simply adjust the concentration of the top off solution?