Alfagrog E25 Ceramic Biological Filter Media 15kg color-black unobstructed view into their underwater

unobstructed view into their underwater environments

and this ballast seamlessly fits select Oase models

and Sea Life facilities

Suitable for ponds up to 11

Solar Panel: 9W 9V

Alfagrog E25 Ceramic Biological Filter Media 15kg color-black unobstructed view into their underwaterAlfagrog E25 Ceramic Biological Filter Media (15kg 20L) Improve biological filtration performance with Alfagrog E25, a highly porous ceramic filter media designed for ponds, koi systems, aquariums, sumps, and trickle filters. Its lightweight foamed ceramic structure provides an extensive surface area for beneficial bacteria, helping to support the biological breakdown of ammonia and nitrite. Suitable for both freshwater and marine systems, Alfagrog is