API Nitra-Zorb for API NexxFilter & Rena Smartfilter Size 6 = 7.4 oz (Treats 55 Gallons)
Composed of natural and synthetic ion-exchange resins in a convenient pouch. Selectively removes ammonia, nitrite and nitrate from freshwater aquariums. Completely rechargeable with Doc Wellfish's Aquarium Salt.
- 7.4 oz pouch in jar
- Treats up to 55 gallons