{"product_id":"seachem-phosguard-bagged-100ml","title":"Seachem PhosGuard Bagged 100 mL – Phosphate \u0026 Silicate Remover","description":"\u003cp\u003eSeachem PhosGuard Bagged 100 mL is a rapid-acting chemical filtration media designed to remove phosphate and silicate from freshwater and saltwater aquariums. Reducing excess phosphate and silicate can help limit nutrients associated with nuisance algae and support clearer aquarium water.\u003c\/p\u003e\n\u003cp\u003eThe highly porous, bead-shaped aluminum oxide media allows water to flow around and through the material efficiently. This convenient 100 mL pre-bagged size is ready to place inside a canister filter, hang-on-back filter, media chamber, box filter, sump, or other suitable high-flow filtration area.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves Phosphate:\u003c\/strong\u003e Rapidly reduces elevated phosphate levels in freshwater and saltwater aquariums\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves Silicate:\u003c\/strong\u003e Helps reduce silicate that may contribute to diatom growth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Bagged Media:\u003c\/strong\u003e Ready-to-use format eliminates the need for measuring loose media or purchasing a separate filter bag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHighly Porous Beads:\u003c\/strong\u003e Bead-shaped media promotes efficient water movement through and around the product\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIrreversible Binding:\u003c\/strong\u003e Does not release captured phosphate or silicate back into the aquarium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater \u0026amp; Saltwater Use:\u003c\/strong\u003e Suitable for both aquarium types when used according to the manufacturer’s directions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 100 mL Size:\u003c\/strong\u003e Convenient for smaller aquariums, nano systems, and targeted phosphate control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Seachem\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e PhosGuard Bagged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 100 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Chemical filtration media\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia Type:\u003c\/strong\u003e Porous aluminum oxide beads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves:\u003c\/strong\u003e Phosphate and silicate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAquarium Type:\u003c\/strong\u003e Freshwater and saltwater aquariums\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Pre-filled filter bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest Used For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eElevated phosphate levels\u003c\/li\u003e\n\u003cli\u003eElevated silicate levels\u003c\/li\u003e\n\u003cli\u003eNuisance algae management routines\u003c\/li\u003e\n\u003cli\u003eDiatom management\u003c\/li\u003e\n\u003cli\u003eFreshwater and saltwater aquariums\u003c\/li\u003e\n\u003cli\u003eNano and small aquarium filtration\u003c\/li\u003e\n\u003cli\u003eCanister and hang-on-back filters\u003c\/li\u003e\n\u003cli\u003eSumps and filtration media chambers\u003c\/li\u003e\n\u003cli\u003eSupplemental chemical filtration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003ePhosGuard may generate heat when it first contacts water. Before placing it in the aquarium, add the PhosGuard bag to approximately twice its volume of freshwater to pre-wet the media. Do not pour water directly onto dry PhosGuard, and do not use saltwater for the initial wetting process.\u003c\/p\u003e\n\u003cp\u003eAfter pre-wetting, rinse the bag thoroughly with freshwater. Place it in an area where aquarium water flows efficiently through the media, such as a canister filter, media chamber, box filter, hang-on-back filter, sump, or trickle filter.\u003c\/p\u003e\n\u003cp\u003eDo not allow the media to tumble against itself because excessive movement may cause dust. Seachem does not recommend using PhosGuard in a tumbling media reactor.\u003c\/p\u003e\n\u003ch3\u003eDosage Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaltwater Aquariums:\u003c\/strong\u003e Use 85 mL for every 50 gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater Aquariums:\u003c\/strong\u003e Use 85 mL for every 100 gallons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFollow the directions printed on the package and adjust the amount used according to aquarium volume. Avoid overtreating or rapidly reducing phosphate, particularly in reef aquariums.\u003c\/p\u003e\n\u003ch3\u003eTesting \u0026amp; Replacement\u003c\/h3\u003e\n\u003cp\u003eLeave PhosGuard in place for approximately four days and then test the aquarium’s phosphate or silicate level. If the targeted level has not decreased to approximately 0.02 mg\/L, replace the media with fresh PhosGuard.\u003c\/p\u003e\n\u003cp\u003eIf phosphate or silicate remains controlled, the media may remain inside the filter until levels begin to rise again. Product lifespan depends on the aquarium’s starting phosphate or silicate concentration, water volume, feeding habits, livestock load, and maintenance routine.\u003c\/p\u003e\n\u003cp\u003ePhosGuard is not regenerable. Dispose of exhausted media and replace it with fresh product.\u003c\/p\u003e\n\u003ch3\u003eFiltration Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePlace the bag where water is directed through the media rather than around it\u003c\/li\u003e\n\u003cli\u003ePre-wet the media using freshwater before installation\u003c\/li\u003e\n\u003cli\u003eRinse thoroughly to remove loose dust\u003c\/li\u003e\n\u003cli\u003eTest phosphate and silicate regularly\u003c\/li\u003e\n\u003cli\u003eUse smaller amounts continuously rather than occasionally using excessive amounts\u003c\/li\u003e\n\u003cli\u003eAvoid allowing the media to tumble inside a reactor\u003c\/li\u003e\n\u003cli\u003eReplace the media when phosphate or silicate levels begin to rise\u003c\/li\u003e\n\u003cli\u003eDo not attempt to regenerate exhausted PhosGuard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Aquarium Care Note\u003c\/h3\u003e\n\u003cp\u003ePhosphate and silicate may enter an aquarium through fish food, tap water, organic waste, substrate, rocks, or insufficient maintenance. PhosGuard can help reduce these nutrients, but the source of elevated levels should also be identified and corrected whenever possible.\u003c\/p\u003e\n\u003cp\u003eRegular water testing, appropriate feeding, water changes, gravel cleaning, proper filtration, and removal of decomposing organic material remain important parts of long-term algae management.\u003c\/p\u003e\n\u003cp\u003ePhosGuard is not recommended for freshwater aquariums that use phosphate-based buffering products because the media may remove the phosphate buffer until it becomes exhausted.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does Seachem PhosGuard remove?\u003c\/strong\u003e\u003cbr\u003ePhosGuard rapidly removes phosphate and silicate from freshwater and saltwater aquarium water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this PhosGuard already inside a filter bag?\u003c\/strong\u003e\u003cbr\u003eYes. The 100 mL bagged version arrives pre-filled and ready to pre-wet, rinse, and place inside a suitable filtration compartment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan PhosGuard help control algae?\u003c\/strong\u003e\u003cbr\u003ePhosGuard can help reduce phosphate and silicate that may contribute to nuisance algae or diatom growth. It does not replace proper maintenance or correction of the underlying nutrient source.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan PhosGuard be used in freshwater aquariums?\u003c\/strong\u003e\u003cbr\u003eYes. It can be used in freshwater aquariums, although Seachem notes that it generally performs better in saltwater. It should not be used in freshwater systems that rely on phosphate-based buffers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan PhosGuard be used in reef aquariums?\u003c\/strong\u003e\u003cbr\u003eYes, when used according to the directions. Avoid overdosing or reducing phosphate too rapidly because sudden changes may stress corals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to rinse PhosGuard before use?\u003c\/strong\u003e\u003cbr\u003eYes. Pre-wet the media by adding it to approximately twice its volume of freshwater, and then rinse it thoroughly before placing it in the filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I pre-wet PhosGuard with saltwater?\u003c\/strong\u003e\u003cbr\u003eNo. Seachem advises using freshwater for the initial wetting because contact between dry PhosGuard and saltwater may generate significant heat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does PhosGuard last?\u003c\/strong\u003e\u003cbr\u003eIts lifespan depends on the aquarium’s phosphate and silicate levels. Test after approximately four days and replace the media when the targeted level remains elevated or begins to rise again.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan PhosGuard be regenerated?\u003c\/strong\u003e\u003cbr\u003eNo. Exhausted PhosGuard should be discarded and replaced with new media.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is PhosGuard different from PhosBond?\u003c\/strong\u003e\u003cbr\u003ePhosGuard is made from alumina oxide and works rapidly. PhosBond combines granular ferric oxide and alumina oxide, giving it a higher phosphate-binding capacity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan PhosGuard be used in a media reactor?\u003c\/strong\u003e\u003cbr\u003eSeachem does not recommend using it in a tumbling reactor because the beads may rub against one another and create dust.\u003c\/p\u003e\n\u003ch3\u003eAvailable at Tropical Treasures Wyo\u003c\/h3\u003e\n\u003cp\u003eSeachem PhosGuard Bagged 100 mL is a convenient chemical filtration media for reducing phosphate and silicate in freshwater and saltwater aquariums. Visit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop Seachem filtration media, filter bags, phosphate test kits, canister filters, hang-on-back filters, water-care products, and aquarium maintenance essentials.\u003c\/p\u003e","brand":"Tropical Treasures Wyo LLC","offers":[{"title":"Default Title","offer_id":53106417434837,"sku":null,"price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4545\/8133\/files\/SC01850-2T.png?v=1784986952","url":"https:\/\/tropicaltreasureswyo.com\/products\/seachem-phosguard-bagged-100ml","provider":"Tropical Treasures Wyo LLC","version":"1.0","type":"link"}