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black sand in new 75?

  1. General Reef Discussion
    Hey guys and gals, I'm new to TRT:wavey:, but I've been in the hobby for about 9 years or so. Anyway, I currently have a 55 gallon that's been running for a long time, though I know it doesn't have the optimal filtration system. It's a mixed reef with MH, but my filtration isn't the greatest, in...
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