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Re: wonder water
A few days ago Jim Kostich wrote:
"It just occurred to me that the "magic" ingredient to your "Wonder
Water" might just be - carbon dioxide! Some of the water sources in
my area come out of the tap saturated (maybe even supersaturated) with
CO2, with a low pH that rapidly rises upon standing."
This idea seems like a good one to me - and easily testable. Since CO2
is not being supplied to the tank, one would just have to measure CO2
levels in the tank immediately after a water change with this 'wonder
water'. Monitor CO2 levels over the course of the rapid photosynthesis
phase until photosynthesis stops. You could easily measure
photosynthesis too. Simply count the number of O2 bubbles released
from one of your plants over 1 minute (I know this is crude, but it
will work in this case). Then graph both sets of data over the time
period measured. If the rate of photosynthesis decreases as CO2 levels
drop, then this may be your answer. It's worth a try, right?
Robb