Live rock has been the traditional way to seed biological filtration, but a porous ceramic media offers dramatically more surface area for bacterial colonization than an equivalent volume of rock - MarinePure is built specifically to maximize that. Two formats fit different filtration setups.
Why Surface Area Beats Live Rock Volume
Beneficial bacteria colonize surfaces, and porous ceramic media is engineered with far more internal surface area per unit of volume than natural rock ever offers, meaning a MarinePure media bed can support significantly more biological capacity than the same volume of live rock.
Choosing a Format
- 1.5in Spheres - a porous ceramic biofilter media offering far more surface area for bacterial colonization than an equivalent volume of live rock, ideal for filling media baskets, bags, or sump compartments.
- 8x8x1 Biofilter Media Plate - supports both aerobic filtration (ammonia/nitrite conversion) at its surface and anaerobic denitrification deeper in the porous structure, in a flat, stackable plate format.
Setup Tips
- Use spheres for loose-fill applications like media bags or baskets; use the plate format for stackable, defined placement in a sump compartment.
- Rinse in tank water before adding to clear dust without harming the porous structure.
- Position for adequate flow so both aerobic and anaerobic zones within the media get consistent water exchange.
MarinePure Biofilter Media is available at Marine Concept Supply in both formats - order online or pick up at our shop in Wheeling, IL. Shop 1.5in Spheres or 8x8x1 Media Plate, and browse more aquarium filtration.
