I'm beginning to question the "low nutrients = good colour" thing... When I lost my last fish in my previous tank, I just kept the system going with no fish. No fish...no feeding...super low nutrient load...and my coral lost all their colours. During this unintended experiment, I continued with normal water changes and Ca/Alk supplementation.
In my current tank, the coral colour is outstanding and I feed super-heavy. I can't imagine a higher nutrient system. It is puzzling...
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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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