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 nexxÃ¢â€žÂ¢ FILTER.

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