"Need to", probably not, but "want to", maybe, that will depend on what you want. Like I said earlier, I am doing both... I feel that by doing both the pros of both outweigh the cons of either. You can go with one or the other, or both, or neither (you can VERY easily maintain nice values with two-part additives such as B-Ionic or Seachem Reef Builder for alk and Reef Calcium for alk).
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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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