10 Media bags 4"x4" with zipper (Small)
AquaFX Media Bags are used for all kinds of like media carbon, GFO, crushed corals, or even bio filtration . The media bag allows water to pass though without letting any of the debris out of the bag keeping everything contained. By placing the media bag in your sump, you can control the amount of water that flows through the media ensuring you get enough contact time. They can conform to AIO aquarium filtration or fit snug in sump baffles, directing flow through the Media bags is important to get maximum passive flow.
Chemical filtration is important for maintaining water quality and keeping a happy reef aquariums. AquaFx always recommends testing your water quality when using any medias!