API Phos-Zorb by by API
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.
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My 11" Red Ear slider is a messy creature. I tried RENA's carbon bags that go with the XPS Canister systems, and the water never cleared up. I tried going outside the RENA brand with this and the water looks drinkable. It's incredibly clear and odor free.
Phos-Zorb rapidly reduced phosphate levels in my 30 gallon saltwater system from 2 ppm to less than .5 ppm nearly overnight. However, PH plummeted and had to be corrected several times. However, the media provided only about 2 weeks of service before phosphate levels began to rise - much less 1-2 months cited on the package.