red_foreman wrote:
Question: would a buffer of sodium carbonate(baking soda) help keep
the
swings to a minimal??


I thought so too, at first, Red. Now I understand that the buffer will
not affect the swing, but it will buffer against a crash. Using the
C02 calculator on Chucks aquariam page, (and reading his note on this
topic) you can see that the swing will be the same as C02 is added,
regardless of KH. If the KH buffer is over about 2degree, then you're
prolly not going to experience a pH crash.

steve