Supa activated filter carbon is ideal for use in many types of freshwater and marine aquarium filters including all external canister filters, box and trickle filters.
Determine the amount of activated carbon required by using at least 1g of carbon per litre of water and remove any dust by rinsing in fresh water. Place the required amount of carbon either in a fine mesh bag, or trap between two layers of filter wool, and place in the filter. It is advisable to replace the carbon every four weeks.