The Planted Tank Forum - View Single Post - Affordable CO2 sensor?
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post #62 of (permalink) Old 11-26-2012, 08:06 PM
Wasserpest
Are these real?
 
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Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,407
Have you been able to confirm real world things, like CO2 fluctuations between day and night in your low tech tank?
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