{"product_id":"pond-ammonia-filter-media-twin-pack-uk-removes-nitrite-rechargeable-zeolite-pouches","title":"Pond Ammonia Filter Media Twin Pack UK | Removes Nitrite | Rechargeable Zeolite Pouches","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cp class=\"featured-snippet\"\u003e\u003cstrong\u003ePond Ammonia Filter Media Twin Pack\u003c\/strong\u003e provides double the protection against toxic ammonia and nitrite in your koi pond or large ornamental pond. Each pack contains two large natural zeolite mineral pouches, giving you rotating coverage — recharge one while the other remains active. Rechargeable with simple salt water treatment for long-term, economical use.\u003c\/p\u003e\n\n\u003ch2\u003eDesigned for Large Koi Ponds\u003c\/h2\u003e\n\u003cp\u003eLarge koi ponds with heavy fish loads demand serious ammonia management. A single small pouch is simply not adequate for a pond stocked with large koi. This twin pack provides the volume of zeolite media needed to make a meaningful difference in a large pond, and the two-pouch format enables a continuous rotation system — one pouch active in the filter while the other recharges in a salt solution.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Rotate Two Pouches?\u003c\/h2\u003e\n\u003cp\u003eZeolite becomes saturated and loses effectiveness after several weeks of use. Recharging requires a 24-hour salt water soak and a rinse, during which your pond has no zeolite protection. With a twin pack, you can always maintain coverage: Pouch A goes into the filter while Pouch B recharges, and you swap them every 3–4 weeks. This continuous rotation ensures your pond always has active ammonia-removing media in place.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo large pouches per pack\u003c\/strong\u003e — designed for large koi ponds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves ammonia and nitrite\u003c\/strong\u003e — the two most dangerous pond pollutants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRechargeable with salt water\u003c\/strong\u003e — long-term economical use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits most pond filters\u003c\/strong\u003e — place in any filter chamber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural zeolite mineral\u003c\/strong\u003e — safe for all fish species\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal rotation system\u003c\/strong\u003e — one active, one recharging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable as 4-Pack\u003c\/strong\u003e — for multi-chamber filter systems or very large ponds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\" style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;text-align:left;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eContents\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2 large zeolite pouches (Twin Pack) \/ 4 pouches (4-Pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eMedia Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eNatural zeolite mineral\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eRemoves\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAmmonia, nitrite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eRechargeable\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eYes — 24hr salt water soak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBest For\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eLarge koi ponds, heavy stocking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePlacement\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eFilter chamber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eThe Zeolite Rotation System\u003c\/h2\u003e\n\u003cp\u003eFollow this simple 4-week rotation for continuous pond protection:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeek 1–3:\u003c\/strong\u003e Pouch A active in filter, Pouch B stored clean\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeek 4:\u003c\/strong\u003e Remove Pouch A, place Pouch B in filter. Soak Pouch A in strong salt solution (25g salt\/litre) for 24 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter recharge:\u003c\/strong\u003e Rinse Pouch A thoroughly, store clean. Pouch B now active\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRepeat:\u003c\/strong\u003e Alternate pouches monthly for continuous coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen to Use Additional Pouches\u003c\/h2\u003e\n\u003cp\u003eThe 4-Pack is recommended when you have a multi-chamber filter system, are running multiple ponds, have a very large or heavily stocked koi pond (above 20,000 litres), or want to maintain a larger reserve of media. It offers the best value per pouch and ensures you always have emergency replacement media available.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eHow many times can zeolite pouches be recharged?\u003c\/h3\u003e\n\u003cp\u003eHigh-quality zeolite can typically be recharged 3–5 times before its effectiveness begins to decline significantly. After each recharge cycle, test your water with an ammonia test kit — if ammonia begins rising despite the pouch being present, it's time to replace it rather than recharge it again.\u003c\/p\u003e\n\n\u003ch3\u003eWhat concentration of salt should I use for recharging?\u003c\/h3\u003e\n\u003cp\u003eUse non-iodised salt at approximately 25g per litre of water. Soak the pouch for a full 24 hours, then rinse very thoroughly with fresh water to remove all salt before returning to the pond. Never return a salt-soaked pouch to the pond without thorough rinsing.\u003c\/p\u003e\n\n\u003ch3\u003eDo these pouches work in cold water during winter?\u003c\/h3\u003e\n\u003cp\u003eZeolite's ion exchange process is less efficient at cold temperatures, but it still provides useful ammonia absorption even in winter. During very cold periods when fish metabolism slows and ammonia production drops, the reduction in efficiency is often offset by the lower ammonia load from fish in winter.\u003c\/p\u003e\n\n\u003ch3\u003eCan I use these alongside other filter media?\u003c\/h3\u003e\n\u003cp\u003eYes — these pouches are complementary to your existing biological, mechanical, and chemical filter media. They do not replace a biological filter but provide an important additional layer of ammonia protection, particularly during filter maturation, after medication, or during high fish density periods.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I know when the zeolite has been exhausted?\u003c\/h3\u003e\n\u003cp\u003eThe most reliable indicator is your water test results. If ammonia begins rising above 0.25mg\/L despite the pouches being in place and recently recharged, the zeolite capacity has been exhausted. Test weekly with a quality ammonia test kit to monitor effectiveness.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"PondLiners Co","offers":[{"title":"Twin Pack","offer_id":57667537076572,"sku":null,"price":90.0,"currency_code":"GBP","in_stock":true},{"title":"4-Pack","offer_id":57667537109340,"sku":null,"price":159.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/2035\/9260\/files\/1d0c03acff1a9ac026e601b39fd07398.jpg?v=1779047871","url":"https:\/\/www.pondlinersco.co.uk\/products\/pond-ammonia-filter-media-twin-pack-uk-removes-nitrite-rechargeable-zeolite-pouches","provider":"PondLinersco.co.uk","version":"1.0","type":"link"}