Aquatop Forza Replacement Filter Pads are made of strong poly-fiber with premium activated carbon to collect organic debris for easy removal. Organic debris can reduce filter efficiency and cause the buildup of odor and unsightly sludge. These replacement pads come pre-assembled for quick, easy installation and replacement.
Directions: Replace filter insert every 4-6 weeks for optimal filtration. Aquariums with heavier livestock loads may require more frequent replacement.