PhosBan from Two Little Fishies is a favored chemical filter media because it will not leach substances back into your aquarium. Largest adsorption capacity of any phosphate filtering media. Ferric oxide hydroxide-based granules also adsorb organics and other pollutants. Use just like activated carbon.
- adsorbs phosphates
- adsorbs silicate
- does not release adsorbed substances
- Recommended by Julian Sprung for long-lasting and easy control of phosphate levels on a permanent basis.
