| Nitrifying and Denitrifying bacteria live on
the surfaces of any material in the filter, and can be made from many
products in different configurations such as sponges, corrugated tubes
and pipes, drinking straws and many different mesh weaves.
Most biofilters require a large amount of media, are unsightly
and extremely inefficient, plastic mediums can also release toxic
compounds into the aquatic environment.
As you can see, the bacteria all cling to the wall of the
media, it has been shown in scientific trials, this is a very unstable
enviroment for the bacteria and they suffer greatly from a wide
range of environmental stress.They therefore don't function at peak
efficiency, evidence of this can be seen in the differing performance
levels between plastic media and clay media, the next step in the
evolution of biofilter media. |
