Bio-Rocks, 0.5 cu.ft. picture

Bio-Rocks, 0.5 cu.ft.

USD$ 28.99
Item is available.
Item # BB0500
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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 heavyweightbio-media. Use 1 box of 0.5 cubic feet of Bio-Rocks per Media Bag.