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.

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.