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Lava Rock Bags

  • Mesh Filter Media Bags

    4.7

    (37 reviews)

    …secondary filtration media these Mesh Filter Media Bags can handle it. The ultra fine 1/8 mesh on our Fine Mesh Filter Media Bag is ideal for small filter media like carbon or barley pellets while the 1/4 mesh on the Standard and Large Mesh Filter Bags can handle heavy duty applications of large…
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    $3.99 - 9.99
  • …area. * Hard Water: Lava rock naturally contains a variety of minerals including iron and magnesium that could affect your water's pH making it harder. Hard water can make it more difficult to treat algae blooms. * It's Heavy: They may be porous chunks of rock but hefting bags of it takes some…