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Old 05-06-2010, 10:31 PM
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Default Indoor gardening with CO2 for Hydroponics

We all know that all life on planet earth is carbon based, that includes plants. The building block of all plants is carbon, as well as the bulk of what a they are made of. Carbon dioxide (CO2) is present at a concentration of approximately 350 ppm in the atmosphere. However, this is an average [...]

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