Black Lava Natural Gravel Sample
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SubstrateSource Black Lava Natural Gravel - Sample

Black Lava Gravel Sample with 5.0 star rating


In stock.


  • Sample - approximately 1 tablespoon
  • Plants love it - highly porous
  • Screened, washed and kiln dried
  • No wet weight - shipped dry!
  • Uniform size and texture (10-20 mm granules)

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[Free shipping] SubstrateSource Black Lava Gravel Sample  SubstrateSource Natural Lava Gravel is a highly porous substrate for use in freshwater aquariums. The lava has been screened to remove large granules and can be used as a complete aquarium substrate system.

Nutrients: The lava has not been treated with additives or altered from its naturally inert state; however, it does have a high Cation Exchange Capacity (CEC). CEC is a measure of a substrate's ability to store and release compounds including critical nutrients for healthy plant growth. These nutrients are absorbed from fish waste or fertilizers added to the aquarium and made available in the substrate bed, at the root site.


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Black Lava Gravel Sample with 5.0 star rating  5.0 out of 5.0 Stars (1 Review)

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5 star review by customer Aquasaur for Black Lava Gravel Sample by on December 1, 2010Verified Purchase

Ok seriously. I'm never buying Eco-complete again. Thanks guys. You rock.