Biological Filtration Media

Sunday, 28 August 2005

Article Index 1. Biological filtration media 2. Ceramic rings 3. Sintered glass 4. Bio balls 5. Lava rocks Page 5 of 5 Lava rocks Lava rocks usually comes in two forms - big pieces for decorative purposes, and small pieces for biological filtration purposes. One of the more famous brand of lava rock is Eheim Ehfilav. "Lava rocks are actually inefficient for bacteria-housing purposes, even when compared to the humble ceramic rings." Although widely used, there are reports that suggest that lava rocks are actually inefficient for bacteria-housing purposes, even when compared to the humble ceramic rings. This is due to the internal structure of the lava rock. As the holes inside of it are not linked to its surface, water is unable to pass through. Thus the only place that can house bacteria, is the exterior of the lava rock. Thus if you had plans to use lava rocks, it is best if you look at something else. Another filtration media that is as affordable as lava rocks, would be ceramic rings. << Prev - Next