🐠 With the largest Eheim Canister filter 1200xl/t you can also clean the pre-filter quite easily without having to empty or clean the whole filter. If you do this about every 2 weeks, you can significantly increase the service life of the filter Powdered Olibetta .. #olibetta #werbung #eheim #eheimfilter #eheim1200xlt #filter #aquarium #cleaning #aquascaping #fishtank #fishkeeping #tropicalfish | Oliver Knott