API Nitra-Zorb Size 4, 2-Count

API Nitra-Zorb Size 4, 2-Count

• Pre-dosed cartridge for mechanical and chemical filtration for nexx external filter
• Removes toxic ammonia, nitrite and nitrate in freshwater aquariums
• Multi-stage filtration to remove small and large aquarium pollutants

Composed of natural and synthetic ion-exchange resins. Selectively removes ammonia, nitrite and nitrate from freshwater aquariums. Rechargeable with API Aquarium Salt. Use both at aquarium start up and daily. Fits the API nexxâ„¢ FILTER.