Eheim classic 250 Black Activated Carbon Foam Filter Pads, 3 Pack Nitrate Remover Once installed

Once installed

Ideal for mud refugiums

cover the cylinder opening with one hand while moving to the animal that you are feeding

Leave product in place for 4 days

New formula is 17x thicker allowing for more control and less mess

Eheim classic 250 Black Activated Carbon Foam Filter Pads, 3 Pack Nitrate Remover Once installedFine and coarse activated carbon filter pads for adsorptive filtration For adsorptive filtration also for removal of harmful chemical substances (chlorine, remains of medical treatments etc.) there are special activated carbon fine and coarse filter pads as a filter insert. Adsorptive filtration is usually only necessary in the start up phase of the aquariums or after use of medication. The filter media should only be used for a short time (ca. 4