Alfagrog Porous Filter Media for Ponds and Aquarium Fish Tank Filters 1000g 1KG

• What is Alfagrog ?
• Alfagrog is a porous foamed ceramic material, which is lightweight and strong
• Totally inert (will not affect pH).
• Extremely high surface area
• Economical. 20-50mm pieces

Product description Alfagrog Fish Tank Filter Media and decoration product in 1Kg bag. It's high surface area makes it the natural choice for colonisation by micro organisms in biological filtration systems resulting in cleaner water. The Alfagrog range of porous ceramic filter media is made under controlled conditions in the UK. Selected clays and raw materials are rapidly sintered at high temperature to produce a foamed ceramic porous mass, which is crushed and sieved to a convenient particle size. Alfagrog is available in a wide range of sizes giving the end user optimum media surface area in varying water flow rates. The manufacturing process ensures that no substances are present to adversely affect the health of fish or plants. The material is pH neutral and can be used in both freshwater and marine applications. Why is Alfagrog so effective? The key to effective biological filtration is choosing media with the highest surface area possible to allow beneficial bacteria to colonise and remove waste from the water. Alfagrog has an extremely high surface area by volume compared with other types of filter media on the market. Legal Disclaimer please ensure all stones are washed prior to use, using water removed from fish tank. Any large media can be broken into smaller pieces first