PO4x4 is a polymer-based mini granular adsorbent developed specifically to eliminate phosphates. Its structure offers a large active surface area, limits clumping, and allows for use in a fluidized filter.
| Brand | DVH |
| Category | Anti-phosphates |
| Volume | 500 ml |
| Usage | Marine and freshwater aquarium |
This media helps maintain a low phosphate level, even in aquariums where nitrates are already controlled. It can adsorb about 4 times more phosphates than many traditional GFO media.