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Originally Posted by kwirky
yeah i use OceanPure, and I gotta be careful, because when I set up my system initially, the Mg was at a skyhigh 1550 or so. Somebody else who uses the same salt gets about 1350 from it, so I think it was the batch.
could be a batch that you got? Did you test it before dosing? I learned from my own experience there that I should test the newly mixed saltwater before I put it in, so I know what to dose safely.
I bought a big thing of magnesium dosing stuff, and I haven't even cracked it open yet because of where the Mg's at.
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Good point! I always test my IO when I get a new batch, to ensure my mixing recipe stays the same.
Also, remember that magnesium (as is alk & calcium) go up proportionally to SG.