Up To 55 Gallon Tank Power Filter - Model 55 For Fresh Water Aquariums, Saltwater Aquariums, Aquaculture, Terrariums & Hydroponic Systems Up to 55 Gallons In Size - Sold By Pidaz Ultra efficient filtration system for aquariums up to 55 gallons. Multi-Stage filtration, mechanical, chemical & biological filtration. Stage one - Mechanical: Advance multi-layered polyfiber floss traps micro & macro organic particles and foreign debris. Stage Two - Chemical: Super-Activated carbon granules absores many disolved contaminants, order, toxins, and discoloration. Stage Three- Biological: Hi-Flow bio-sponge promotes colonization of beneficial bacteria essential to a healthy aquatic environment. Cartridge included. Traps micro & macro organic particles & foreign debris. Porous, biological sponge promotes beneficial bacteria colonization. Dual slotted filter body filter allows for double the filtration capacity. No-mess cartridges, keeps hands dry and clean during cartridge changes. Cartridge included Powerful & quiet running. Complete water circulation & filtration. Adjustable flow control.