Key Features Highly porous, biological media for all types of aquarium filter. Very effectively breaks up impure substances therefore making aquatic fishes and plants much more healthier. Ideal for both salt water and fresh water 500g Box Pack of 5 Pisces Ceramic Biological Rings are highly effective and long lasting filtering material based of a purely biological nature. The Rings provide a favorable habitat for degradative bacteria and other favorable microorganisms and doesn’t require frequent cleaning. The ring surface area is large enough for excellent water flow. In addition, filtering rings and similar media provide fish with an excellent habitat in both salt-water and fresh-water aquariums by reducing the risk of aquatic disease Specifications Tank Size - (Recommended Amount) 2ft -2.5ft (50 -80 Litre) - (500g) 3ft (120 -150 Litre) - (1000g) 4ft (180 - 280 Litre) - (1500g) 5ft (300 - 500 Litre) - (2500g)
