Volcanic Rock 500g
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The volcanic (igneous) rock that forms as an erupting volcano’s molten lava cools and hardens – is very porous. When chunks of it live in your filtration system, you provide a lot of surface area for beneficial bacteria to colonize and grow. That’s what makes it such a great filter media.
Makes an economical biological and mechanical filter media.
Can work for de-nitrifying (nitrate removal) due to it’s deep pores and over all surface area in comparison to over all size and surface area exposed to water flow & oxygen.
Highly porous.
Shipping Countries: South Africa
Shipping States: Gauteng (South Africa)
Specification: Volcanic Rock 500g
| Weight | 0.75 kg |
|---|
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