Nitra - zorb Size 4 2pk

Aquarium Pharmaceuticals - Nitra-Zorb Size 4 2Pk. A convenient pouch of natural and synthetic ion-exchange resins that selectively remove ammonia, nitrite, and nitrate from freshwater aquariums. Nitra-Zorb also helps during start up by reducing unhealthy ammonia surges while establishing the aquariums ecosystem. Nitra-Zorb is completely phosphate-free and can be reused after recharging. Aquarium: Filter Media Size 4 2 Pk