I get about 175 PAR at the gravel in my 30" tall tank. Has sufficed to grow a squamosa from 4 to 14 inches in a little over 3 years. Maximas I have grown higher up at about 300 PAR. All LED.
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Simon
Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones!
Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs
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