Ammonia is the leading killer of tropical fish. It is the result of decomposing waste and food in your aquarium. Combat this serious issue with our Ammonia Reducing Pads. They are specially infused with ammonia-absorbing particles that pull harmful ammonia from your aquarium or pond water.Like all our infused media pads, our long-lasting polyfiber material is up to twice as thick and is much more rigid than competing pads, enabling them to fit tighter, hold their shape longer, filter more effectively, and last longer.These pads will:Quickly absorb ammonia from waterReduce the risk of disease and stressImprove water clarity and qualityImprove and maintain fish healthEliminate odorsEffectively remove all organic particles, foreign debris, residual medications, excess food and wasteTo Use:Acurel Ammonia Reducing Media Pads should be used as a preventive measure. These pads are not a remedy for sustained ammonia concentrations, and should be used ONLY in FRESH WATER AQUARIUMS and PONDS. They can be cut to fit any aquarium or pond filtration unit including hang-on filters, canister filters, top filters, internal filters, wet/dry filters and more.