Activated Carbon is an essential filter media for every aquarium.
Activated carbon is frequently recommended for use in aquarium filters.
It can effectively eliminate odors, detoxifies harmful metals, purifies and soften the water absorb chemical residue/ compounds and water purifying effect.
The ceramic rings are very porous, although they look solid, there are zillions of tiny holes in
it, and that makes it an
ideal home for the cycle bacteria that you want in the filter.
Ceramic rings are extremely porous, which provides a lot of surface area for beneficial bacteria
Due to its cylindrical shape, water flows through it easily and makes it less likely to clog.
With fine and porous holes, provide the area for the autoeciousness of nitrifier, with good effect of aeration to provide
oxygen for the nitrification good for decomposition of residue.