I use a mix. Anemones looks better with the Mg at those levels (don't ask me why they care, but they do - I can always tell when my Mg has gotten too low by looking at the anemones), plus, although it could be hearsay I keep hearing that higher Mg levels help keep hair algae and bryopsis at bay.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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