BENEFITS AQUANATURE BIO SQUARE is a super lightweight filter media suitable for both small and large aquarium filters. Its unique structure and perfect microporous characteristics create an excellent habitat for nitrifying and denitrifying bacteria. BIOLOGICAL Biological Media Benefits .Waste decomposition: Beneficial bacteria inhabit the medium, breaking down toxic waste. .Water quality maintenance: Regulates the concentrations of ammonia, nitrite, and nitrate. .Balanced ecosystem: Promotes a stable environment for the aquarium. .Reduced water changes: Contributes to maintaining water quality, decreasing the frequency of necessary water changes. usage The microporous design of BIO SQUARE creates the best environment for the growth of nitrifying and denitrifying bacteria, which helps the cartridge eliminate nitrates, nitrites, and ammonia from the water. DIRECTIONS Rinse before use. Can be used in canister filters, sumps & wet/dry filters RECOMMENDATION AQUANATURE NITRIFYING BACTERIA are beneficial microorganisms that convert ammonia and nitrite into nitrate, which is safe for fish. This process is crucial after substantial water changes, when setting up a new aquarium, or following maintenance on aquarium filtration systems. STORAGE Store in a cool,dry place. CAUTION Keep out of reach of children. Not for Human Consumption. This product is intended for ornamental fish and should not be applied to fish meant for human consumption. If accidental ingestion, seek medical assistance. If contact with eyes occurs, rinse thoroughly with water, consult a medical professional.