balrama Undergravel Aquarium Filter(Biological Filtration for Salt Water and Fresh Water)

Description

Activated carbon, is used as a chemical filtration media. It helps to remove many organic and inorganic materials dissolved in tank water.it keeps the aquarium water clear, and removes odors. Activated carbon works by using absorption process it sucks the pollutants which makes your water polluted and doesnt release it. Use it by poring in electronically operated fliters in the sponge or by spreading at the corners of your aquariums 1 teaspoon of premium activated carbon effective for 30 liters of water (1 cubic feet contains 20 liters of water approx.)