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Originally Posted by scuba_steve @ Fri Jan 21, 2005 3:50 am
sure, argonite (crushed coral) as the substrate, or inside of the filters
limestone
eco complete substrate
shells
pieces of coral
a variety of other types of buffering substrates and rocks
dont know if you consider baking soda a chemical, but it raises ph to 8 very nicely, if you overdose it wont go higher than 8.5, very fish safe btw.
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How much Baking Soda are we talking here??
1 tea spoon, 2 tea spoons etc..??