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Old 05-14-2008, 01:13 PM   #18 (permalink)
Naja002
Planted Tank Guru
 
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Quote:
Originally Posted by Left C View Post
Not much B.

Right above the parts list is a series of pictures. Notice that the reference solution is always the same color and the indicator solution changes color according to the CO2 (pH) level.

Ok, so what keeps the reference solution from collecting C02 and changing color? I assume its the "buffer" part of the reference solution.........
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