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post #2 of (permalink) Old 03-22-2013, 11:20 PM
Planted Member
Join Date: Feb 2013
Location: Eaton Rapids, Mi, USA
Posts: 267
according to their website, at 16"(ish) depth you would be looking at 110 micro mols

if you look at Lighting an Aquarium with PAR instead of Watts

you will see that over 50 micromols would be considered "high" light.

im sure someone else will chime in, but it seems to me that, yes, algae will be a problem without co2.
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