Stage one - mechanical: Advanced multi-layered polyfiber floss traps micro & macro organic particles and foreign debris Stage two - chemical: Super-activated carbon granules absorbs many disolved contaminants, odor, impurities, and discoloration Stage three - biological: Hi-flow bio-sponge promotes colonization of beneficial organisms essential to a healthy aquatic environment. Porous, biological sponge promotes beneficial organisms colonization. Includes no-mess cartridges and sponges, keeps hands dry and clean during cartridge changes. Plug and play design for easy installation and simple maintenance. Our performance power filter are designed aquariums up to 30 gallons. The triple stage filtration design provides biological, chemical, and mechanical filtration for a complete 3-stage filtration. Plug and play design for easy installation and simple maintenance. Promote a healthy aquatic experience with our ultra efficient filtration system.