Nyos Phosi-Ex is a high-capacity, moist iron-based (GFO) filter media that permanently removes dissolved phosphates and silicates from marine aquariums. Unlike aluminum-based removers, Phosi-Ex will not release harmful trace substances back into your system or destabilize pH levels. Its moist packaging preserves active surface binding sites, ensuring maximum absorption capacity for long-lasting water quality control.

Dual-Action Phosphate & Silicate Removal

Nyos Phosi-Ex features an extremely high-performance iron matrix that simultaneously binds inorganic phosphates (PO4) and silicates (SiO2). By pulling both elements directly out of the water column quickly and efficiently, it effectively starves out hair algae, film algae, and diatoms, leaving your reef clean and vibrant.

Moist-Pack for Maximum Adsorption

To deliver unmatched efficiency straight out of the jar, Nyos Phosi-Ex is packaged moist. This unique preservation method keeps the fine surface structures hydrated, preventing the active binding sites from collapsing and ensuring maximum absorption capacity the moment you introduce it to your filter sleeve or media reactor.

Stable Chemistry Without pH Fluctuations

Nyos Phosi-Ex locks away unwanted compounds without changing your aquarium’s established pH or alkalinity.

Specifications:

• Media Type: Granular Ferric Oxide (GFO)
• How Much to Use: 150 – 200 mL per 125 gallons (500 L)
• Tank Type: Fresh and saltwater aquariums

What's Included (i.e., what’s in the box)

1. Nyos Phosi-Ex Phosphate Remover