Activated carbon aquarium filter media improves water quality by chemically adsorbing dissolved pollutant compounds derived from degeneration of the organic substances. In this way, Activated Carbon clarifies cloudy water, removes odors, and eliminates tannins that cause yellowing. It also removes medications, chlorine, chloramines, and certain phenols but does not address ammonia, nitrite, or nitrate.

Sintered glass bio-rings are high-porosity filter media that provide an exceptionally large surface area for beneficial bacteria to colonize, leading to highly efficient biological filtration and improved water quality in aquariums and ponds. Made from high-quality minerals, they establish a stable environment for nitrifying bacteria that rapidly process ammonia and nitrites, reduce algae by breaking down organic matter, and remain neutral in pH without altering water parameters.

Zeolite is a natural crystallized mineral of volcanic rock, that acts as an aquarium filter media by using ion exchange to absorb and remove ammonia and heavy metals from freshwater tanks. It is particularly useful for quickly reducing dangerous ammonia spikes from fish waste and uneaten food, but it is not a permanent solution as it becomes saturated and must be replaced.

Oyster shell chips (in fine grind it is shell powder) serves as natural water conditioner, as well as natural filter media. The main effects of Oyster shell chips in saltwater aquarium are: 1) Acting as a buffer to help stabilize pH and Alkalinity, 2) Supplement calcium, carbonate minerals and trace elements, 3) Provide biological filtration surface.