How often do you need to clean the ceramic filter tubes for aquarium filters?
The smooth surface and large hollow body of the ceramic filter rings (JBL Cermec) is not only colonised by beneficial filter bacteria. Over time it also becomes clogged with sludge and other residues. This inhibits the bacteria activity and in the worst case can bring it to a standstill. It is therefore advisable to rinse out the material in a bucket of aquarium water every 4-8 weeks, depending on the degree of contamination. This will prevent the filter bacteria from being badly damaged and the worst of the dirt sticking to the filter material will be removed. If at all possible, do not clean the entire filter at once, only clean it in sections.