This is exactly 7 hours worth of skimmate from the G6. 1 cup worth of really foul smelling stuff. While this is the part that I can easily drain out, there is considerably more gooey stuff in the neck and collection cup.
Skimmer needs to be completely cleaned 2x per week.

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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