Description: Brand new and high quality These porous Bio provide a greater air surface for bacterial development and help decompose ammonia and nitrate efficiently. This will withstand any chemical reaction and is suitable for both Fresh and Salt water Fish Tanks and is perfect for use in Internal / External Pond & Aquarium filters. Please ensure you thoroughly rinse your media until the water runs clear prior to use. Quantity: 1 bag Specification: Black ball diameter: Approx. 3cm/1.18inch White cylinder size: Approx. 1.7*2cm/0.67*0.79inch Yellow ball diameter: Approx. 2cm/0.79inch Gravel size: Approx. 2*1cm/0.79*0.39inch Large stone size: Approx. 6*5*3cm/2.36*1.97*1.18inch Package Includes: 1 Bag Aquarium Filter Media Note: Since the size above is measured by hand, the size of the actual item could be slightly different from the size above. Due to the lighting effects, monitor settings, etc. There could be some slight difference in the color tone of the pictures and the actual item
