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API Phos-Zorb for the API Nexx and Rena SmartFilter selectively removes ammonia, nitrite, and nitrate from freshwater and saltwater aquariums. It also removes phosphate, a by-product of fish metabolism and decaying organic matter and an additive in some tap water supplies, aquarium products and filtration media.
- Easy to use filtration media
- Eliminates cloudy water caused by phosphates
- Will not remove trace elements and will not affect pH
Size 6: Aquariums up to 55 Gallons
Directions: Each pouch is effective for up to 2 months. Change regularly for maximum effectiveness.