JBL CombiBloc CristalProfi E - filter cartridge for CristalProfi E filters

Quality of foam material:
Foam materials used in aquaristics with live animals must always be tested for harmful substances, as most plastics release problematic plasticizers into the water. All plastics used by JBL have successfully passed this test and do not release ANY harmful substances into the water.

Cleaning plastics:
For many months, it is sufficient to rinse soiled filter sponges under warm running water and then, before reinstalling, inoculate them with filter bacteria (JBL FilterStart). Since mechanical cleaning will NEVER ensure complete cleanliness and dirt will remain in the filter sponge, it is recommended to replace filter sponges approximately every 6 months. If you leave a cleaned filter sponge in a jar with clean fresh water overnight, you will see the next morning how much dirt is still in that supposedly clean sponge.

Inoculating filter material with cleaning bacteria:
The initial colonization of filter material with cleaning bacteria takes about 1-2 weeks in freshwater, while in saltwater the time is twice as long. If the filter material has already been used, the "re-colonization" time doubles, as re-colonization on dead bacterial strains does not occur easily. Adding concentrated cleaning bacteria as in JBL FilterStart shortens the biological startup time to about 24 hours. Another reason is to populate the existing colonization space in the filter material with beneficial bacteria so that pathogenic germs have no place to spread. This has been scientifically proven in the meantime.

Included: 4 pre-filter cartridges, 1 filter sponge 20 ppi, 1 filter sponge 30 ppi