Filtration is fundamental to aquarium environment. There're 3 basic types of filtration: mechanical, chemical and biological, only when they're all available can a truly healthy and balanced environment be maintained for the fish.
Among the 3 types of filtration, biological filtration is the most essential of all. It's an effective approach to the removal of ammonia, nitrite and nitrate from water by biological conversion of a toxic solute to a less toxic or harmless solute.
What Longtai specialize is biological filter media products. All of our biological filter media are made from high-class natural materials and heat treated under optimal scientific formula. Customers believe on our quality filter media to help them maintaining a crystal clear and healthy aquarium.