FWIW, the ocean currents only appear to be less at night, but this isn't the case, it's usually just less wind on ocean surface.
Most seem to agree that there is greater benefit from maintaining good flow at night.
I run reefcrest 24/7
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Current Tank Info: SCA 120g RR Starfire, Tunze silence 1073.02 return, 40g sump w/ fuge, SWC Extreme 160 cone skimmer,Geismann reflexx 4xT5, 2x Panorama Pro LED strips, Vortech MP40QD
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