Filter Media

Aquarium filter media

Filter media does the quiet work of keeping water clear. Our aquarium filter media includes filter socks and pads for catching debris, and activated carbon for removing color and odors. There is also GFO for removing phosphate, and bio media where helpful bacteria live.

Mechanical, chemical and biological

Mechanical media, such as socks and pads, traps particles. Change or clean it every few days. Chemical media, such as carbon and GFO, removes dissolved waste, and it is often run in a media reactor. Finally, biological media gives bacteria a home, so leave it alone unless it clogs.

Common questions

How often should I change carbon?

Many reefers replace it every three to four weeks. However, that depends on your tank and how much you use.