The Planted Tank Forum - View Single Post - ~Explanation of how a drop checker works~
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post #13 of (permalink) Old 05-09-2011, 01:29 PM
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when you guys say "reaction" from your plants to the CO2, what do you mean? i've been wondering if my CO2 diffusion is working well or not, but haven't determined what the visual signs should/would be.
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