Hyperactive charcoal of vegetable origin specially developed for water purification. Particularly suitable for marine aquariums where the purity of coal and? fundamental requirement. The small size favors the flow of water and the contact with the absorption surfaces: the result is? greater efficiency and more? long duration. IS? effective in eliminating: residues of medicines after a treatment, harmful substances, organic pollutants, pesticides, odors, dyes, chlorine, ozone and many heavy metals.