Feature(s): Quiet Low operating costs Complete filtration Large filter media volume Superior contact time with filter media Cycle Guard, for continuous biological filtration and superior water quality Includes foam, carbon BioMax Filter inserts CycleGuard now with BioMax - Preserves beneficial bacteria for a stress free environment. A healthy aquarium requires "beneficial" bacteria. Invisible and harmless, beneficial bacteria are essential in the removal of toxic ammonia and nitrate.

• Refiltration system that offers superior contact time with filter media and energy efficient pump lowers operating costs
• Quick and easy installation
• Filtration volume is up to 7 times larger than comparable filters
• Comes equipped with AquaClear Foam, Activated Carbon and BioMax and Cycle Guard for continuous biological filtration and superior water quality
• 2 year warranty; Ideal for aquariums up to 20 gallons