oncorhynchus Posted January 31, 2011 Share Posted January 31, 2011 So, given that the volume of our systems are not perfectly known and the concentrations of supplements are not fully disclosed, I am trying to figure out the best way to supplement Mg, Ca and Alk. My three-part supplement simply says "recommend .5ml/gallon per day for reef aquariums". I just did a 3 gallon WC on my 14 gallon. After the WC, parameters were pH 8.25, Mg 1200 ppm, Ca 410, alk 3meq/L or 8.4 dKH. Phosphate was .005 - is this going to cause algae?. I am wondering how best to add my supplements. My plan was to wait a few days and re-test and see where Ca and Mg were, but even then I am not sure how much supplements to add. How do the pros do this? Link to comment
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