Compare webshops (1)
Shop
Price
Highly Effective E40 Alfagrog Bio-Media made of hardened ceramic materials and increased surface area for beneficial bacteria growth Alfagrog is ideal for use in any biological filter system. It is very popular among koi keepers and commonly used in multi chamber filter systems Replacing plastic filter media with alfagrog will massively increase the biological capacity of your filter. Its high surface area makes it the natural choice for colonisation by micro organisms in biological filtration systems resulting in cleaner water Lightweight, Economical Biological Filter media - highly Porous, Inert and pH Neutral