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0 Nitrates and Phosphates is never good, corals need food. My Frogspawn has done well in PAR levels from 75 to 400 and nitrates from 2 to 80.
The first two pictures are led at 100 to 200 PAR, the third picture is under metal halide around 400 par
Last edited by alton; 01/04/2019 at 06:07 AM.
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