The Planted Tank Forum - View Single Post - 12G Long Mr. Aqua w/ 26W CFL - Too little or too much?
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post #2 of (permalink) Old 09-24-2011, 07:57 PM
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Join Date: Dec 2005
Location: Sacramento, CA
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Based on: it looks like you will have 60-80 micromols of PAR, which is in the high medium range, and with that much light CO2 is almost necessary, if not necessary. (This is assuming you have the lights on each end of the tank, so they make a row across the tank.)

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