![Atlantic Bio-Rocks, 0.5 cu.ft.](http://shop.watergardengems.com/cdn/shop/products/6141f4c525466.jpg?v=1671127938&width=480)
Atlantic Water Gardens
Atlantic Bio-Rocks, 0.5 cu.ft.
$31.99
$35.99
Title
$31.99
$35.99you save $4.00
High surface area provides optimal environment for beneficial bacterial colonization. With all of 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. Expanded clay is a lightweight, stable and less abrasive alternative to lava rock and gravel. Bio-Rocks are durable and easy to clean. Use one box of Bio-Rocks per BG2234 Media Bag. Bio-Rocks have a 5-year warranty.
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