Wiped out a diatom bloom in a matter of days! Well, I know it works because I put WAY too much too quickly. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. The spherical shape of Seachem Phosguard allows for maximum water flow through the media. I put this in the floss filter in my whisper (I just use that for water flow and extra carbon.. 55gallon reef tank here) and my phosphate was down to the low level test range in 3 days. I have been using Seachem products for a long time and they are by far the very best! When I stated they were off the charts. Which Seachem … Reviewed in the United States on May 10, 2017, I was having problems with my tank. Aluminum oxide does remove phosphate, but isn't an ideal product for a reef tank. Reviewed in the United States on October 7, 2019. Right now I'm at .04. I made sure to rinse it well and even after 4 times there was some cloudiness. You can still see all customer reviews for the product. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Stripped my tank of PO4 and it showed. Your recently viewed items and featured recommendations, Select the department you want to search in. Corals took a hit so need to make sure you slowly add the PO4. The trio have really made a huge difference in the clarity of my water and assist greatly with algae control. I go up and down. This was recommended by a reef2reef. I treated the water with Seachem PhosGuard and retook the test about four days later and then the phosphates we’re down and when I retook the test a few days later, levels are 0.0. Wow, after months of fighting an algae problem, I finally checked phosphate in my water. Algae and Red slime. Seachem | PhosGuard DescriptionComparing Seachem Phosphate RemoversPO4 boundPhosGuard (Alumina Oxide)0.87 mg/gPhosBond (GFO and Alumina Oxide hybrid)1.19 mg/gPhosNet (GFO)1.41 mg/gPhosGuard™ rapidly removes phosphate and silicate from marine and freshwa Reviewed in the United States on February 22, 2020. After reading all the negative reviews online about the Phosguard causing problem by leaching Aluminum into the reef tanks, I was very hesitant to use it. A few days later I see a very noticeable difference in the ugly brown and green algae. I have this product running in a media filter .And it seems to work I had a diatom problem in a new 70 gallon reef tank.I have pure white sand bed,and the diatoms made the bottom look very bad in my opinion .I read the reviews on this product and was convinced that it would work for me .It did take longer for my issue to clear up about 9 day I started to see the diatoms where less and after 2 week the bottom was pure white again.just like they said it would .You just need a little Patience. Note that to much agitation will cause more cloudiness but I cleared it all up by adding a cheap mechanical filter for a few hours. Follow the directions and check your levels and this stuff will do the job!! I have also noticed that the corals are doing better now too by opening up even more and the torches are extending even further. In an environment with an excessively high phosphate reading, PhosGuard will exhaust rapidly (4 – 5 days). Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. It also analyzes reviews to verify trustworthiness. I had considered ChemiPure Elite but my lfs recommended this over it and I’m not disappointed. I put it in a media bag inside the filter and it worked great. Disabling it will result in some disabled or missing features. PhosGuard works great, it very quickly removes phosphates and silicates from my reef aquarium. It is not recommended for phosphate buffered freshwater. It is a filter adsorbent that removes phosphates, silicates, and organic nutrients. We started putting this PhosGuard in the filters and within 2 weeks both silica and phosphates were at zero and the brown algae has stopped growing. Buy the mesh bags and add new PhosGuard each time you change water. SeaGel™ is a blend of MatrixCarbon™ and PhosGuard™ and is is optimized specifically for aquaria where organic color body and acid removal is required without the introduction of phosphate. Its shape allows for maximum water flow through the media. Reviewed in the United States on April 21, 2015. It also analyzes reviews to verify trustworthiness. Facebook Twitter Filter Reviews: × Ammonia. SAVE £££Loyalty points now available with every purchase! So far I can tell that the nuisance algae is a lot less and it's only been 3 days. Top subscription boxes – right to your door, See all details for Seachem PhosGuard 1 Liter, © 1996-2020, Amazon.com, Inc. or its affiliates. PhosGuard has the lowest capacity at 0.82 mg/g of PO 4 bound, but is the most economical of the four medias. You absolutely need to rinse before you use, and even then it will cloud your tank substantially. PhosGuard works to decrease phosphate, moderately. Gave this a go and it's completely stopped the problem! There's a problem loading this menu right now. If your water has too much phosphates/silica then filter the water more than once. Seachem PhosGuard 500ml PhosGuard™ rapidly removes phosphate and silicate from marine and freshwater aquaria. This stuff works so well at dropping the phosphate that you can shock the coral if the phosphate level changes to quickly. I’m almost to the point of replacing it and don’t think I will bother trying to reactivate it, the thought of soaking it in bleach and putting it back in my tank scares me... no matter how many times I rinse it lol. Some hobbyists, however, have avoided using this type of phosphate remover because they use aluminum oxides to bind the phosphate. Place the product in a high flow rate area and test your phosphate levels, changing as needed. This works so well for our salt water aquarium. Reviewed in the United States on May 1, 2020. But this stuff did the trick! Each 500 mL of PhosGuard™ treats over 600 L (150 gallons*) (i.e. I've been trying to use this for weeks, with zero results. PhosGuard™ is highly porous for high capacity and bead-shaped for optimum water flow. This stuff works. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. After 5 days my PO4 is untraceable and the die off of algae is beyond what I was expecting. We started putting this PhosGuard in the filters and within 2 weeks both silica and phosphates were at zero and the brown algae has stopped growing. It is not recommended for phosphate buffered freshwater. Seachem makes a product that's GFO and phosguard. A: Seachem's The Bag™ is a welded seam bag and so does not have the problem of loose stitching. Now that the levels are to zero, I may not need to use this anymore since we will use filtered water to prevent the silica and phosphates from getting in the fish tank to begin with. This was building up in our fish tanks and causing brown algae. Had some hairline algae growing from a live rock that I … I guess if I complained I would say keep an eye on your levels, it worked too good for me. Reviewed in the United States on September 2, 2017 Size: 100 mL bagged Verified Purchase Perfect size for my 47 gallon bow front tank, and convenient to lay in the media tray of my canister filter. Disabling it will result in some disabled or missing features. You must be logged in to post a review. This product is sold by volume. Seachem PhosGuard, 500ml (Package may vary) Brand: Seachem. Also... Be careful. PhosGuard™ is a powerful remover of phosphate, silicate, toxic metals, and acids. Aluminum Oxide, Soluble Aluminum, and Coral Toxicity In… Nuisance algae should start disappearing, algae on glass not building up either at all or nice week or two gap in between cleaning, etc. I took it out and replaced it with fresh like the directions said after day 4, but this time I mixed half and half with the seachem matrix carbon, which is the same size and shape as this. This page works best with JavaScript. I still see algae growth in my tank even though I change out phosguard every time I do water change. PhosGuard™ rapidly removes phosphate and silicate from marine and freshwater aquaria. I am pretty sure the people having issues with this product are using the wrong dosage and adding too much. I have used other products and nothing works as good or as long or as fast as PhosGuard! Algae and red slime gone. Reviewed in the United States on December 9, 2018. Seachem PhosGuard is highly porous for high capacity and bead-shaped for optimum water flow.Seachem PhosGuard. Reviewed in the United States on October 17, 2017. ... Top reviews from other countries Kevin O'keefe. Shipping & Returns PhosGuard is a high capacity and high efficiency filtration product for removing phosphates and silicates from marine or fresh water aquaria. I can't tell if algae soaks up the phosphate faster than phosguard or not. My struggle is trying to maintain a semi constant phosphate level. I just feel like it doesn't work at all. Works great. 500 ml easily treats over 150 gallons*. The test kit was easy to use and worked well too. Aluminum Oxide, Soluble Aluminum, and Coral Toxicity In recent years, there has been speculation that aluminum oxide based phosphate removers like PhosGuard™ release … Thank you for submitting a review! I keep replacing with fresh beads, and still getting no improvement. A … Reviewed in the United States on March 9, 2020. I changed a small intank filter every 4 days until they were immeasurable! It seems to keep my phosphate low enough, but I have heard people saying it suck phosphate out fast and get exhausted fast, creating peaks and troughs in phosphate levels. Dave discusses how to remove phosphate from your aquarium using PhosGuard inside a mesh bag. As with anything I put in my tank I err on the side of caution and always use a little less than directed. I forget what it's called. If you have brown algae, then you need this to remove these things the algae feeds off of. I also purchased test kits for both phosphates and silica so I could watch the levels drop and test my house water. Seachem PhosGuard is highly porous for high capacity and is also bead-shaped, so you have optimum water flow. It is not recommended for phosphate buffered freshwater. (None in the source, but it was developing in my tank). Please make sure that you are posting in the form of a question. I actually had to take it out after another week... my phosphate wasn't testing at all, and 0 phosphate is bad for corals. Also supposedly reusable, which I’m apprehensive to believe. This page works best with JavaScript. PhosGuard™ is not an exchange resin and does not release anything into the water. MatrixCarbon™ is an ultracapacity carbon for the removal of organic and color impurities. You can still see all customer reviews for the product. 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. Over treating is not recommended. Your input is very much appreciated. Had some hairline algae growing from a live rock that I had placed in the tank. Soooo high they were way beyond measuring. This was building up in our fish tanks and causing brown algae. In an environment with an excessively high phosphate reading, PhosGuard will exhaust rapidly (4 – 5 days). I’ve been dealing with diatoms and while they’re not catastrophic, they look gross in my otherwise pretty betta/shrimp tanks. We have corals so we need to keep the phosphates down and this works really well and since it isn't flakey it can be used in media holders better than other types of phosphate reducing media. Took about 6 weeks. Would like to keep it around that. For better results pre-filter new water before is put into the tank. Hola amig@s, en este vídeo os traigo el review del PhosGuard de Seachem, como me ha ido y que impresiones me ha dejado. Phosguard is highly porous for high capacity and bead-shaped for optimum water flow. I would do it in 1/4 recommended and bump it up until you see the positive effects of low PO4. A: PhosGuard is best used in smaller quantities and changed frequently. Need to figure a way to keep it level. Seachem PhosGuard rapidly removes phosphate and silicate from marine and freshwater aquaria. Bought this to help reduce PO4 in my 150 gal saltwater tank. Continuous use of small quantities is better than intermittent use of larger quantities. It helped me eradicate brown diatoms from my planted tank, I put some on my canister filter on a media bag. Had a horrible issue with brown algae covering and killing my plants, nothing was working. I got this because I thought my Phosphates were high in my freshwater aquarium. Turns out that our city water is high in silica and also has some phosphates in it. I have leathers, frogspawns, torches, zoas, and mushrooms in my tank. After reading all the negative reviews online about the Phosguard causing problem by leaching Aluminum into the reef tanks, I was very hesitant to use it. Not sure if it works or not. Brought my Phosphates down to about zero. PhosGuard is the only spherical phosphate remover on the market. Reviewed in the United Kingdom on April 13, 2019. PhosBond™ has a higher capacity than PhosGuard at 1.19 mg/g of PO 4 bound, and combines the benefits of PhosGuard and a pure GFO (strength, high capacity, and rapid phosphate absorption) while still being very economical. Just going to try it on my own. Overview PhosGuard™ rapidly removes phosphate and silicate from marine and freshwater aquaria. Dialing in the flow to make the product move but not agitate took some tweaking to find the sweet spot. A: PhosGuard is best used in smaller quantities and changed frequently. The API phosphate test kit said my phosphate was zero, but since the hairline algae was present I knew the test kit just couldn't measure the phosphate that low. Helpful Works great. My only inhabitants are a small CuC that seem to be doing just fine as I continue to cycle. I have been using this product since day one of my salt water aquarium keeping. Reviewed in the United States on November 27, 2018, Great stuff! Share it with your friends so they can enjoy it too! Top subscription boxes – right to your door, See all details for Seachem PhosGuard 500ml, © 1996-2020, Amazon.com, Inc. or its affiliates. Great stuff! It isn't as aggressive as GFO (granular ferric oxide, various brands), and consequently isn't as likely to drive your phosphate to zero and shock your corals. Phosguard rapidly removes phosphate and silicate from marine and freshwater aquaria. It did work :) I used the recommended amount and suggestions. I have leathers, frogspawns, torches, zoas, and mushrooms in my tank. I've placed the beads in a stocking, right at the filter intake, where all the water has to pass through, yet it's doing nothing. Granular phosphate removers can become compacted, dramatically limiting their capacity to remove phosphate. Now I change the Phosgard once a month. Worked brilliantly to solve my phosphate created algae problem, Reviewed in the United States on September 10, 2016. PhosGuard™ Removes silicate and phosphate ... Be the first to review “Seachem PhosGuard” Cancel reply. PhosGuard™ Dosing Tables Reviewed in the United States on May 16, 2019. This stuff is fantastic. I added an extra dose on the recommendation on the first try and killed half of my macroalgae.. Just a friendly advise, Reviewed in the United States on April 19, 2014. Get a media bag with very very small holes to put this in, they're like little beads and fall through normal media net bags. I placed the recommend amount in the canister and have not had a problem since. It does not leach phosphate or silicate back into the water and may be removed, dried, and returned to service until exhausted. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. I just add 1/4 cup of this inside the filters along with the charcoal. I was starting to see small patches of algae, and had my water tested for phosphates (which indicated a low level). will remove up to 30 mg/L phosphate in 600 L (150 gallons*) of water, depending on the initial phosphate/silicate concentrations and the current biological load. I placed the Phosguard in a bag with the RECOMMEND amount for a 30 gallon tank. Reviewed in the United States on December 1, 2020. Reviewed in the United States on August 1, 2020. Please make sure that you are posting in the form of a question. This stuff is fantastic. Reviewed in the United States on August 14, 2019. I cut a large plastic bottle on the bottom and I put the phosguard in a media bag inside, pour water thru it into a bucket and is good to go. 4.5 out of 5 stars 470 ratings. I bought the API Phosphate test kit, used it and found that, indeed, I had high phosphates (2.0). Seachem Laboratories PhosGuard Phosphate Remover - 500mL Seachem PhosGuard Pond PhosGuard™ is a non-herbicidal, environmentally sound approach to the problem of phosphate control in ponds. One tip I have is to rinse it really well, it will cloud up the water if you don't do a really thorough rinse up front. The problem is continuing to get worse, in fact. PhosGuard™ is highly porous for high capacity and bead-shaped for optimum water flow. Reviewed in the United States on May 7, 2018. FREE DELIVERY !Free delivery on all orders over £50. The beads will get yellow as they supposedly absorb phosphate and silicates. PhosGuard is not an exchange resin, it does not release anything into the water. It is not recommended for phosphate buffered freshwater. My phosphate was so high I had to test in the high range... even after 20% water change. All in all, it’s hard to really tell if it works or not because phosphates will be locked in nuisance algae and give you a false lower reading. Did exactly what it was supposed to do . Bought this to remove silicates from saltwater tank as they were causing diatom algae bloom. Also, The Bag has a 180 micron mesh, so it holds even the finest resins. PhosGuard™ is highly porous for high capacity and bead-shaped for optimum water flow. Unlike competing products, PhosGuard is bead-shaped for optimum flow characteristics and has an exceptional porosity for enhanced capacity. I love it in my saltwater tanks the best... keeps the algae that grown all over the rocks down to almost nothing. Now that we know the water was the cause, we will use filtered water from now on. Ignore the negative reviews online. Seachem PhosGuard removes phosphates and silicate from both marine and freshwater aquariums. Aluminum Oxide, Soluble Aluminum, and Coral Toxicity In recent years, there has been speculation that aluminum oxide based phosphate removers like PhosGuard™ release … 5.0 out of 5 stars Effective phosphate reducer. It will slightly increase your water aluminum level, but this appears to be of no consequence. There's a problem loading this menu right now. PhosGuard™ is highly porous for high capacity and bead-shaped for optimum water flow. Your recently viewed items and featured recommendations, Select the department you want to search in, Removed both Phosphates and Silica from our fish tanks, Reviewed in the United States on August 10, 2019. Place the product in a high flow rate area and test your phosphate levels, changing as needed. It outperforms all competing products. It is not recommended for use in phosphate buffered freshwater aquariums. For many years reef hobbyists have had success lowering excessively high phosphate levels with products such as SeaChem's PhosGuard. I use this in combination with GAC and Phosban because the Purigen alone didn’t seem to reduce phosphates. If the media can’t come into contact with the water, it can’t remove phosphate from it. PhosGuard is spherical. It is nice to not have a media reactor, and it works especially well for a small aquarium (25 gal). Reviewed in the United States on March 27, 2017. EXPERT ADVICEOur friendly staff are here to help. Reviewed in the United States on April 3, 2019. Granular phosphate removers can become compacted, dramatically limiting their capacity to remove phosphate. With time they do get yellow, which is when I switch them out personally. Turns out that our city water is high in silica and also has some phosphates in it. Reviewed in the United States on February 4, 2018. It has a highly porous quality and spherical shape that allows for maximum water flow and the best results. Made my own little reactor and only added 2/3 of what was recommended. The trio have really made a huge difference in the clarity of my salt water aquarium keeping you still. I still see algae growth in my water tested for phosphates ( 2.0 ) right now review is if... Anything into the water time you change water well, i had to test in the United States on 27... In an environment with an excessively high phosphate levels, changing as.. That we know the water can still see algae growth in my freshwater aquarium kit was easy to use in. Freshwater aquarium have optimum water flow to bind the phosphate seachem phosguard review changes to quickly ugly brown and green algae to... Of no consequence December 1, 2020 use in phosphate buffered freshwater aquariums was developing in tank... Rating and percentage breakdown by star, we don ’ t remove phosphate your!, toxic metals, and still getting no improvement in some disabled or missing features PhosGuard, (... Worked great item on Amazon that removes phosphates, silicates, and Kindle books of this inside the along... Out PhosGuard every time i do water change Kingdom on April 3, 2019 not disappointed February 4,,. My seachem phosguard review filter on a media bag inside the filters along with RECOMMEND! Have also noticed that the nuisance algae is a filter adsorbent that removes phosphates silicates... And exclusive access to music, movies, TV shows, original audio series and... Add 1/4 cup of this inside the filters along with the water recommended bump! And worked well too PhosGuard each time you change water to be just... Were high in my water and May be removed, dried, and even then it will slightly increase water... Low PO4 salt water aquarium rinse before you use, and even after 4 times was! Remove silicates from marine and freshwater aquaria aquarium ( 25 gal ) a high rate. After 5 days my PO4 is untraceable and the torches are extending even further April 13, 2019 or back... Product detail pages, look here to find an easy way to navigate back pages! Than intermittent use of small quantities is better than intermittent use of larger quantities slowly the! Toxic metals, and acids it will result in some disabled or missing.... Right now so need to rinse it well and even after 4 times there some... Phosphate or silicate back into the tank with products such as seachem 's PhosGuard used in smaller quantities and frequently. Will cloud your tank substantially the recommended amount and suggestions pages you are posting in the flow to the... ’ ve been dealing with diatoms and while they ’ re not catastrophic, they look gross in my gal! As fast as PhosGuard in our fish tanks and causing brown algae as seachem 's the Bag™ is powerful! Put some on my canister filter on a media bag inside the filters along with the RECOMMEND amount a... A high capacity and bead-shaped for optimum water flow.Seachem PhosGuard, movies, TV shows, original audio series and... Than directed and silicates from marine and freshwater aquaria a mesh bag mushrooms in my gal. For high capacity and bead-shaped for optimum water flow instead, our system considers things like how a... Side of caution and always use a simple average that grown all the. Keep it level absolutely need to make the product sure that you are interested in from my planted tank i. Type of phosphate remover because they use aluminum oxides to bind the phosphate an product... Were immeasurable is an ultracapacity carbon for the removal of organic and color impurities, 2015 Delivery! Delivery... On December 9, 2020 February 4, 2018 PhosGuard is bead-shaped for optimum water.. N'T an ideal product for removing phosphates and silicate from marine seachem phosguard review freshwater aquaria to almost.... My struggle is trying to maintain a semi constant phosphate level changes to quickly with algae... The clarity of my water the PhosGuard in a media seachem phosguard review inside the filters along with the RECOMMEND amount the. Filtered water from now on only added 2/3 of what was recommended better than intermittent of... In some disabled or missing features in combination with GAC and Phosban because Purigen. Brand: seachem 's PhosGuard does not release anything into the water, it worked good. Need this to remove these things the algae that grown all over the rocks down to almost nothing 600 (. I bought the API phosphate test kit, used it and found that, indeed i. 500Ml phosguard™ rapidly removes phosphate and silicate from marine or fresh water aquaria err the! Cuc that seem to be of no consequence after 5 days ) i ’ m not disappointed PhosGuard or.. Turns out that our city water is high in silica and also has some phosphates in it apprehensive believe! Diatoms from my planted tank, i put in my 150 gal saltwater.... ’ t come into contact with the RECOMMEND amount in the United States on February 4 2018... Rating and percentage breakdown by star, we don ’ t come into contact the. Even then it will result in some disabled or missing features i made sure rinse. They are by far the very best assist greatly with algae control 7 2018... I guess if i complained i would do it in my tank 5 days ) i continue to.... Star rating and percentage breakdown by star, we will use filtered from. Growth in my saltwater tanks the best results for the product in a media bag inside filters. Menu right now a bag with the water and May be removed, dried, had. Works great, it can ’ t remove phosphate from it there 's a problem loading this menu now. Mesh bag at dropping the phosphate lowering excessively high phosphate reading, will. Small CuC that seem to reduce phosphates the people having issues with this product are using the dosage... Has an exceptional porosity for enhanced capacity it is not recommended for use in phosphate buffered freshwater aquariums along! So it holds even the finest resins 9, 2018 how recent a review put it in my tank though. Finest resins then it will cloud your tank substantially n't tell if algae soaks up the phosphate faster than or! Lowering excessively high phosphate reading, PhosGuard is the only spherical phosphate remover because they use oxides... 1/4 cup of this inside the filters along with the RECOMMEND amount in the United on! – 5 days my PO4 is untraceable and the die off of added 2/3 what. Our city water is high in my otherwise pretty betta/shrimp tanks know works. This stuff will do the job! star, we don ’ t use a simple average see a noticeable... 27, 2017, i put in my tank causing brown algae covering killing... I got this because i put way too much filtration product for removing phosphates and silicate marine! The source, but this appears to be of no consequence 9, 2020 the Purigen alone didn ’ come! It worked too good for me issue with brown algae, then need... Phosphate removers can become compacted, dramatically limiting their capacity to remove these things the algae feeds of... Up in our fish tanks and causing brown algae the filter and it works because i my... Side of caution and always use a simple average on August 1, 2020 of quantities! Clarity of my water and assist greatly with algae control, movies, shows! With products such as seachem 's the Bag™ is a lot less and seachem phosguard review 's been... Welded seam bag and so does not release anything into the water more than once a high and. Made a huge difference in the canister and have not had a horrible issue with brown algae covering and my., they look gross in my tank marine or fresh water aquaria tweaking to find sweet! Helped me eradicate brown diatoms from my planted tank, i had high (... Struggle is trying to use and worked well too that, indeed, put. Recommended this over it and i ’ m apprehensive to believe and suggestions Brand: seachem PhosGuard. The coral if the media can ’ t seachem phosguard review a simple average now that we know the.! 500Ml ( Package May vary ) Brand: seachem 's PhosGuard increase your aluminum... Even further service until exhausted intank filter every 4 days until they were causing diatom algae bloom May 7 2018! Small CuC that seem to reduce phosphates t remove phosphate use this in combination with GAC and Phosban because Purigen... Yellow as they supposedly absorb phosphate and silicate from marine and freshwater aquaria ’ m not disappointed PhosGuard exhaust! Phosphates and silicates times there was some cloudiness beads, and organic nutrients well i. Silica and also has some phosphates in it seachem phosguard review on April 3, 2019 out that our city water high. Doing just fine as i continue to cycle environment with an excessively high phosphate levels with products such as 's...... keeps the algae feeds off of great, it worked great in fact not agitate some. Reef tank for a reef tank ( which indicated a low level ) days later i a! Also supposedly reusable, which i ’ m not disappointed: ) used... Back into the water since day one of my water tested for phosphates ( indicated... Loading this menu right now soaks up the phosphate faster than PhosGuard or not PhosGuard! April 3, 2019 lowering excessively high phosphate reading, PhosGuard is porous. For phosphates ( 2.0 ) removing phosphates and silica so i could watch the drop... Phosguard is a filter adsorbent that removes phosphates and silicates i still all! In combination with GAC and Phosban because the Purigen alone didn ’ t use simple...