My "one day of darkness" experiment continues...It has been almost three weeks since the single day of darkness and my cyano has not yet returned to where it was. The tank was extremely clean for 1 week...much, much better than usual for the 2nd week and still very good by the 3rd week.
It would seem that a single day of darkness will last me about 1 month to keep cyano under control.
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400 gal reef. Established April, 2007. 3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways, Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies
My Tank: http://www.canreef.com/vbulletin/showthread.php?t=28436
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