I used to be in the same boat as you guys. There are lots of old posts with me saying IO + a couple supplements = WIN. Then I tried H2Ocean and never looked back (my SPS improved). Now, H2Ocean has much higher alkalinity than it used to, so I'm adding muriatic acid to it and everything else tests out fine. If you're not running SPS-dominant, I don't think there is much difference between one salt and another.
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~ Mindy
SPS fanatic.
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