Seachem PhosGuard 1 Liter Saltwater Fish Food Iodide Reagent 2

Iodide Reagent 2

May be used with MICROBACTER7

and/or in which the sea salt mixture employed is boron-deficient

The natural seawater concentration of boron is ~4

so you can add fish to your aquarium (or add them back after a water change) immediately

Seachem PhosGuard 1 Liter Saltwater Fish Food Iodide Reagent 2Removes 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).