Strongly adsorb impurities and reduce the stench of water quality Cultivate beneficial bacteria Change water in the fish tank less frequently Provide sufficient space for nitrifying bacteria Divert water flow to easily filter fine impurities for better water purification effect Can be cut freely without linting Multiple uses. It can be used in top-mounted filters, bottom filtration of fish tanks, waterfall filters, and filter bucket filtration Customizable in size, color, style and material
