{"product_id":"seachem-purigen","title":"Seachem Purigen","description":"\u003cp\u003e\u003cstrong\u003eSeachem Purigen\u003c\/strong\u003e is a premium synthetic filtration resin that pulls dissolved organic waste out of your water before it can break down into ammonia, nitrite, and nitrate. The result is water polished to a sparkling clarity in both freshwater and saltwater. Best of all, Purigen is regenerable, so a single portion can be renewed and reused many times over. It is one of the most versatile pieces in our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/filter-media-cartridges\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003efilter media lineup\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eHow Purigen Works\u003c\/h3\u003e\n\u003cp\u003ePurigen is a macro-porous synthetic adsorbent that captures soluble and insoluble organic impurities at a rate and capacity Seachem rates at over 500 percent beyond competing products. By removing that waste at the source, it lightens the load on your biological filter and helps keep nitrogen compounds in check. As it works, the resin darkens from off-white toward brown, giving you a clear visual cue for when it is time to renew.\u003c\/p\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eWhy Hobbyists Rely on It\u003c\/h3\u003e\n\u003cul style=\"margin:4px 0 12px;padding-left:20px;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal-clear water\u003c\/strong\u003e, it removes the organics that leave water tinted or hazy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls nitrogen waste\u003c\/strong\u003e, adsorbing organics before they release ammonia, nitrite, and nitrate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and saltwater\u003c\/strong\u003e, one media for planted tanks, community setups, and reef systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegenerable and reusable\u003c\/strong\u003e, renew it with a bleach soak and dechlorination to restore full capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in exhaustion indicator\u003c\/strong\u003e, the resin darkens as it fills, so you never have to guess when to recharge.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eRinse Purigen before use and place it in a fine mesh filter bag, 180 micron or smaller, where water flows through it well. The 100 ml size comes pre-bagged, while larger volumes are loose resin best held in a media bag. Replace or regenerate the resin once it turns brown. To regenerate, soak it in a 1:1 bleach and water solution, rinse thoroughly, then soak in a strong dechlorinator such as Seachem Prime before returning it to the tank. Do not use scented or thickened bleaches.\u003c\/p\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eChoose Your Size\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin:6px 0 12px;font-size:0.95em;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f6f6f6;\"\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eTreats Up To\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e100 ml\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e~100 gal\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eNano tanks and hang-on filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e250 ml\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e~250 gal for up to 6 months\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eA typical community or planted tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e500 ml\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e~500 gal\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eLarge or heavily stocked tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e1 L\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e~1,000 gal\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eBig systems, sumps, and fishrooms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin:6px 0 12px;font-size:0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;width:40%;background:#f6f6f6;font-weight:600;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSeachem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSynthetic adsorbent filter resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eWater Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFreshwater and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eRemoves\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eDissolved organics; controls ammonia, nitrite, nitrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eCapacity\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e250 ml treats up to 250 gal for about 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eRegenerable\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eYes, with a bleach soak followed by dechlorination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eUse With\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eA 180 micron media bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eAvailable Sizes\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e100 ml, 250 ml, 500 ml, 1 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul style=\"margin:4px 0 12px;padding-left:20px;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-stability\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eSeachem Stability\u003c\/a\u003e backs up chemical filtration with a strong colony of beneficial bacteria.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-prime-complete-concentrated-water-conditioner\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eSeachem Prime\u003c\/a\u003e dechlorinates after you regenerate Purigen and conditions every water change.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-paraguard\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eSeachem ParaGuard\u003c\/a\u003e treats parasites and fungus; take Purigen out while dosing, then run it after to clear residue.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/filter-media-cartridges\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eBrowse our filter media\u003c\/a\u003e to round out your filtration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know when Purigen is used up?\u003c\/strong\u003e\u003cbr\u003eThe resin darkens as it adsorbs organics and turns a deep brown when exhausted. That color change is your signal to regenerate or replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I regenerate it?\u003c\/strong\u003e\u003cbr\u003eSoak the resin in a 1:1 bleach and water solution, rinse well, then soak in a strong dechlorinator before reusing. Skip regeneration for saltwater use if it has been heavily fouled.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill Purigen remove medications?\u003c\/strong\u003e\u003cbr\u003eYes. It adsorbs many treatments, so remove Purigen from the filter while you are dosing medication, then return it afterward to polish the water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work in both fresh and saltwater?\u003c\/strong\u003e\u003cbr\u003eAbsolutely. Purigen is designed for planted, community, and reef systems alike.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"100 ml","offer_id":48114696683739,"sku":"165","price":10.38,"currency_code":"USD","in_stock":true},{"title":"250 ml","offer_id":48114696716507,"sku":"166","price":17.36,"currency_code":"USD","in_stock":true},{"title":"500 ml","offer_id":48114696749275,"sku":"163","price":31.3,"currency_code":"USD","in_stock":true},{"title":"1 L","offer_id":48114697797851,"sku":"167","price":63.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/0165-Purigen-100-mL.png?v=1767903415","url":"https:\/\/squeakysaquatics.com\/products\/seachem-purigen","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}