Atlantic Water Gardens Bio-Rocks Filter Media Size:0.50 Cubic Feet Far less work to excavate

Far less work to excavate and move than rocks

Its concentrated formulation contains added enzymes to help break down sludge and clean filter pads

and ages like real stone

5" Bio-Balls Filter Media

Beta Carotene

Atlantic Water Gardens Bio-Rocks Filter Media Size:0.50 Cubic Feet Far less work to excavateAtlantic Water Gardens Bio Rocks filter media are an effective, lightweight biological media. With all the surface area but 25% less weight than lava rock and half the weight of gravel, expanded clay Bio Rocks are the more stable, less abrasive alternative to heavyweight bio media! Comes with a 5 year warranty. SKU UPC Code Description BB0500 727429001103 Bio Rocks, 0. 50 cubic feet Bulk size ships by truck freight, which requires that you be present