• Concentrate of highly efficient cleansing bacteria to activate new and cleaned filters and filter materials.
• 8 bacteria cultures working in synergy to break down proteins (heterotrophic bacteria), ammonium and nitrite.
• Indispensable to biologically re-activate a filter after completion of any treatment with bacteria-destroying medications!
• For all filters in freshwater and saltwater up to 3 litres volume.

Direction: Dampen filter material with aquarium water, shake the bottle vigorously and pour the complete contents over the filter mass. Start up the filter. In order to protect the cleansing bacteria, fresh water in the aquarium should be treated with JBL Biotopol at least one hour before FilterStart is used.