I’ve heard good things about Brightwell Microbactor Clean or Microbactor 7 helping with the sludge and other stuff that accumulates on rocks, sand, etc. Is this a good product in your opinion? My tank is about two years old and the rocks do tend to accumulate gunk. I’m still working on flow as another solution. Nutrient levels are low (No3-2.5, Po4-0). Any advice is appreciated!!!
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