Seachem Laboratories PhosGuard Phosphate and Silicate Remover 1ea/500 ml

Seachem Laboratories PhosGuard Phosphate and Silicate Remover 1ea/500 mlPhosGuard Removes silicate and phosphate Spherical for optimal hydrodynamics Irreversible binding Overview PhosGuard rapidly removes phosphate and silicate from marine and freshwater aquaria. Although PhosGuard is effective in both fresh and marine water, it will operate better in sea water and the need for it is better defined in sea water. It is not recommended for phosphate buffered freshwater (PhosGuard would remove the buffer until saturated).