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WHY Calcium carbonate as KH buffer
I am in the process of adding a CO2 solution to my
planted tank. Currently
I buffer GH and KH with sodium bicarbonate (NaHCO3)
for KH and
calcium chloride (NaCl) for GH.
Is there a reason why the CO2 posts here frequently
make reference to
calcium carbonate (CaCO3) as a KH buffer? Is there
any benefit to using
I prefer my current method simply
because the calcium chloride effects
without effecting GH. and because
it dissolves very rapidly with water.