Seachem PhosGuard™ rapidly removes phosphate and silicate from marine and freshwater aquaria. It is not recommended for phosphate buffered freshwater (planted aquaria)

PhosGuard™ is highly porous for high capacity and bead-shaped for optimum water flow

PhosGuard is spherical. Its shape allows for maximum water flow through the media. Granular phosphate removers can become compacted, dramatically limiting their capacity to remove phosphate. If the media can’t come into contact with the water, it can’t remove phosphate from it. PhosGuard is the only spherical phosphate remover on the market

For best results, PhosGuard™ should be placed so as to maximize the flow of water through it. It may be used in a canister filter, box filter, or any high flow area of a trickle filter. In some situations it may be necessary to use in a filter bag. Use 250 ml for every 300 L. Leave product in place for 4 days, then test phosphate or silicate concentrations

Over treating is not recommended. PhosGuard™ is not an exchange resin, it does not release anything into the water. It does not leach phosphate or silicate back into the water and may be removed, dried, and returned to service until exhausted. Continuous use of small quantities is better than intermittent use of larger quantities

May generate heat on initial contact with water. Pre-wet by adding to a double volume of freshwater (e.g. 250 mL of product in 500 mL water), followed by a rinse