The Atlantic Bio-Rocks high surface area provides the optimal environment for beneficial bacterial colonization. With all of the surface area but, 25% less weight than standard lava rock, expanded clay Bio-Rocks are the more stable, less abrasive alternative to heavyweight bio-media. Bio-Rocks are durable and easy to clean.
- Expanded clay bio-rocks
- 25% less weight than lava rock
- More stable and less abrasive than heavy-weight bio-media
- High surface area for beneficial bacteria to colonize
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