{"title":"K1 \u0026 Kplus Media","description":"\u003cp\u003eSupercharge your biological nitrification and mechanical waste capture with our range of authentic Evolution Aqua K1, K1 Micro, and K+ filter media. Trusted by professional koi breeders and pond builders worldwide, K1 media remains the global benchmark for moving-bed bioreactors, Nexus filter systems, and static mechanical pre-filters.\u003c\/p\u003e\n\u003cp\u003eOur collection includes original K1, fine-trapping K1 Micro, and the advanced K+ Media range, which is manufactured with a blend of raw minerals and enzymes to accelerate bacterial colonisation and reduce filter maturation times. Engineered with an intricate wheel-and-fin profile, each piece provides an immense protected surface area where nitrifying bacteria can break down harmful ammonia and nitrite without risk of being stripped away during intense aeration. The continuous tumbling motion in fluidised moving-bed chambers keeps the media self-cleaning, preventing tracking channels and stagnant debris build-up. Whether you are replacing media in an EazyPod, boosting the capacity of a Nexus filter, or building a custom moving-bed chamber, explore our complete K1 and K+ media collection to find dependable, high-surface-area biomedia engineered for crystal-clear water and stable pond parameters.\u003c\/p\u003e","products":[{"product_id":"k1-media-1ltr","title":"K1 Media - 1ltr","description":"\u003cp\u003eK1 Moving Bed process, which has been scientifically tried and tested in fish farming and waste water treatment for over 10 years, is now available for fish keepers and is exclusively distributed worldwide by Evolution Aqua. K1Media is engineered in a wheel shape and is slightly positively buoyant. Allows a small amount of water flow to circulate the media throughout the vessel. This flow is created with your air pump and air stones or diffuser etc. Diameter: 10.5mm Length: 8mm\u003c\/p\u003e","brand":"Evolution Aqua","offers":[{"title":"Default Title","offer_id":57232526311801,"sku":"FM2282","price":9.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/0955\/9929\/files\/133resized1_004f1797-b386-4754-81cc-ed54f1ab6810.jpg?v=1778254019"},{"product_id":"k1-micro-media-1ltr","title":"K1 Micro Media - 1ltr","description":"\u003cp\u003eK1 Moving Bed process, which has been scientifically tried and tested in fish farming and waste water treatment for over 10 years, is now available for fish keepers and is exclusively distributed worldwide by Evolution Aqua. K1Media is engineered in a wheel shape and is slightly positively buoyant. Allows a small amount of water flow to circulate the media throughout the vessel. This flow is created with your air pump and air stones or diffuser etc. Diameter: 7mm Length: 6.4mm\u003c\/p\u003e","brand":"Evolution Aqua","offers":[{"title":"Default Title","offer_id":57232526475641,"sku":"FM2286","price":14.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/0955\/9929\/files\/134resized1_45b5140f-b1f1-44f0-998c-2c5a8a191ac1.jpg?v=1778254020"},{"product_id":"kplus-advanced-filter-media-25litre","title":"Kplus Advanced Filter Media 25Litre","description":"\u003cp\u003eK+Mediaforvastly improved biological filtrationandfaster filter maturation. 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This flow is created with your air pump and air stones or diffuser etc. Diameter: 7mm Length: 6.4mm\u003c\/p\u003e","brand":"Evolution Aqua","offers":[{"title":"Default Title","offer_id":57232526770553,"sku":"FM2289","price":140.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/0955\/9929\/files\/134resized1_52ac2396-874d-40a3-b559-b310bf3d612c.jpg?v=1778254021"},{"product_id":"k1-micro-media-25ltr","title":"K1 Micro Media - 25ltr","description":"\u003cp\u003eK1 Moving Bed process, which has been scientifically tried and tested in fish farming and waste water treatment for over 10 years, is now available for fish keepers and is exclusively distributed worldwide by Evolution Aqua. K1Media is engineered in a wheel shape and is slightly positively buoyant. Allows a small amount of water flow to circulate the media throughout the vessel. This flow is created with your air pump and air stones or diffuser etc. Diameter: 7mm Length: 6.4mm\u003c\/p\u003e","brand":"Evolution Aqua","offers":[{"title":"Default Title","offer_id":57232526803321,"sku":"FM2288","price":85.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/0955\/9929\/files\/134resized1_ef77b3d3-24d7-49f5-8fd1-19c5c5b29898.jpg?v=1778254022"},{"product_id":"k1-media-25ltr","title":"K1 Media - 25ltr","description":"\u003cp\u003eK1 Moving Bed process, which has been scientifically tried and tested in fish farming and waste water treatment for over 10 years, is now available for fish keepers and is exclusively distributed worldwide by Evolution Aqua. K1Media is engineered in a wheel shape and is slightly positively buoyant. Allows a small amount of water flow to circulate the media throughout the vessel. This flow is created with your air pump and air stones or diffuser etc. Diameter: 10.5mm Length: 8mm\u003c\/p\u003e","brand":"Evolution Aqua","offers":[{"title":"Default Title","offer_id":57232526836089,"sku":"FM2284","price":61.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/0955\/9929\/files\/133resized1_d1eaa16d-60be-4db3-a3e2-10e3a6c01513.jpg?v=1778254022"},{"product_id":"kplus-advanced-filter-media-50litre","title":"Kplus Advanced Filter Media 50Litre","description":"\u003cp\u003eK+Mediaforvastly improved biological filtrationandfaster filter maturation. 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