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biofiltration

  1. For Sale/Trade
    Eheim 2215 With marine pure bio balls and sponge. There's still a little room left for additional bio media or a polishing pad. $50 Also selling eheim pro 4+ 350 all original parts and media. Only plugged in once to test. $160 No Shipping
  2. Equipment
    Hey guys, was perusing Home Depot and stumbled upon some expanded clay - a media usually used to grow hydroponic plants. Sometimes called Hydroton (the kleenex of expanded clay). It costs <$10 for ~10lbs of the industrial biofiltration media of choice (as in this study on denitrifying...
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