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Old 01/11/2017, 11:21 PM   #5
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Join Date: Feb 2007
Location: Santa Monica, California, USA
Posts: 2,479
And no, algae cannot get carbon from organics, dissolved or particulate. Organics must first be re-mineralized by bacteria, into A, N and P.

Inventor of the easy-to-DIY upflow scrubber, and also the waterfall scrubber that everyone loves to build:
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