Media replacement for The Hex Aquarium and the Deco Aquarium from Den Marketing.
Consists of 2 x sponges with activated carbon inside.
It is recommended that the sponge and activated carbon are changed monthly to achieve maximum efficiency.
Please remember to rinse the new sponge and activated carbon cartridge with water taken from the aquarium before changing the filter.
Adding a product that contains live bacteria e.g. Cycle from Hagen or Stress Zyme from API is recommended when changing your filter media.
Feed fish lightly for a few days after changing the media to allow the live bacteria time to multiply to sufficient quantities in the new media.