52% under what the other stores charge
Compared across 10 stores. Prices are checked against each store and labelled with when.
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Seachem PhosGuard is a filter media of porous aluminum oxide spheres that removes phosphate and silicate from freshwater and saltwater aquariums. Its round beads are made to keep water flowing through the media bed without packing tight, and the high porosity gives it more capacity than dense granular media. It works in both water types but is at its best in marine tanks, where phosphate control matters most. Reef keepers rate it highly for stripping phosphate fast; the main trade-offs are the heat and dust when first wetted and the need to rinse it well before use.
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Lowest price we've seen: $5.89 on Nov 12 at Premium Aquatics. Tracked across 15 stores since Nov 12.
Owners rate PhosGuard very highly, mostly reef keepers who use it to pull phosphate down quickly. They like how fast it works and how long a container lasts; complaints center on rinsing, dust and the initial heat reaction.
Seachem PhosGuard is a filter media that removes phosphates and silicates from freshwater and saltwater aquariums. The beads are spherical, which promotes good water flow, and they are porous, which improves the media's efficiency and capacity. It works in both kinds of aquariums and operates better in marine environments.
The media can be used in a canister filter, media chamber, box filter, or any high-flow area of a trickle filter. Rinse it before use and place it so water flows through it without making it move and tumble against itself. A filter bag is recommended for easier maintenance and mobility. The media may generate heat when it first contacts water. To pre-wet it, add it to a double volume of freshwater, then rinse it thoroughly with clean water.
Leave the media in place for up to four days, then test phosphate and silicate levels. If the component you are trying to reduce has not dropped to around 0.02 mg/L, replace the media. Otherwise, leave it in place until levels begin to climb again. It is not an exchange resin and does not release phosphate or silicate back into the water. It can be removed, dried, and returned to service until exhausted.
