Help please. I believe I have dinos. The sandbed grows this dusty stuff at an amazing rate. What I never saw on my original reef for over ten years is this grainy looking stuff in my skimmer output which almost looks like microscopic dark brown pepper. When the foam breaks as it enters the skimmer cup this drool looking like chicken soup collects above the skimmer on the sides of the cup. I do weekly 10% water changes have 0 nitrates, 0 phosphates. Run G.F.0, carbon and Purigen. One fish, a large simulations and a handful of frags in a 40g. System. Any thoughts?
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