Black foam for mechanical filtering AMTRA

The bearings can be easily cut and adapted to any type of shape / any shape.

Thanks to the particular structure it is useful both to retain the particles of dirt, and to act as a support for the settlement of the bacterial flora necessary for the biological filtration of water.

Using an accurate rinsing under tap water can be cleaned and reused several times. In case it is used as a support for the installation of filtering bacteria it is recommended to clean only in the aquarium water, previously taken and put in a bucket, so that the chlorine present in the tap water can not kill the bacterial flora present.

In general, it is recommended to clean it every 2-4 weeks when used only as a material for mechanical filtration.

When it is also used for biological filtration, clean it if necessary, i.e. when it is clogged and the flow of water in the filter is too slow.