PO4x4 is a mini granule polymer-based 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 | 1000 ml |
| Use | 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.