AkuaPure releases minerals and trace elements, with noticeable benefits for all the aquarium's living inhabitants. AkuaPure is an organic filter media made of very fine grained clays. A small mass possesses a very large surface area, so, even when using a small quantity of the product, there is a vast area on "friendly" bacteria (Nitrosomonas e Nitrobacter) involved in biological filtration (nitrification process) can develop.