PhosNet™
- Rapidly removes phosphate & silicate
- Synthetic granular ferric oxide (GFO)
- Less dust and thus is easier to use than most competing GFO products
Overview
PhosNet™ is a granular ferric oxide (GFO) with high porosity, high surface area and high binding capacity. It will rapidly remove phosphates and silicates from both freshwater and saltwater and will not release them back into your aquarium. It exhibits stronger binding than most competing products and consequently can reduce phosphates and silicates to very low levels. PhosNet™ also offers less dust and thus is easier to use than most competing GFO products.
| Parameter | Value |
|---|---|
| Form | Granular ferric oxide (GFO) |
| Volume | 125ml |
| Target Ions | Phosphate, Silicate |
| Binding Capacity | High |
| Dust Level | Low |
FAQ
How long does it take for PhosNet™ to start removing phosphates and silicates?
PhosNet™ begins to remove phosphates and silicates quickly upon contact with the water. Full effectiveness is typically observed within a few days of regular use.
Can PhosNet™ be used in both freshwater and saltwater aquariums?
Yes, PhosNet™ is effective in both freshwater and saltwater environments.
Does PhosNet™ release the removed ions back into the aquarium?
No, PhosNet™ does not release phosphates or silicates back into the aquarium once they are bound.

Lucas Hudson –
I’ve used PhosNet™ for several months in my freshwater tank. The phosphate levels dropped significantly after just a week. The product is easy to handle and produces minimal dust, which is a big improvement over other GFO products I’ve tried.
Megan Taylor –
Great product for controlling phosphate buildup. It works well in my community tank and has helped reduce algae growth. The granules are stable and don’t scatter much during use.
Nathan Allan –
Effective at lowering phosphate levels. I added a small amount every few weeks. It’s easier to use than other GFOs due to less dust. Would recommend for any aquarium with high phosphate issues.