{"product_id":"pond-bacteria-bomb-sludge-bomb-duo-uk-crystal-clear-water-natural-treatment-koi-safe","title":"Pond Bacteria Bomb \u0026 Sludge Bomb Duo UK | Crystal Clear Water | Natural Treatment | Koi Safe","description":"\u003cp\u003e\u003cstrong\u003eThe Pond Bacteria Bomb Duo combines a beneficial bacteria bomb to clear green water with a sludge bomb to eliminate pond floor muck — a complete two-action natural treatment. 100% chemical-free and koi safe, it treats ponds up to 20,000 litres and delivers visible results within 24 to 72 hours.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eTwo Bombs. One Clear Pond.\u003c\/h2\u003e\n\u003cp\u003eMost pond problems stem from two root causes: suspended algae causing green water, and decomposing organic sludge on the pond floor releasing ammonia and hydrogen sulphide. Our Duo Pack attacks both problems simultaneously with precisely formulated beneficial bacteria — no harsh chemicals, no risk to fish or plants.\u003c\/p\u003e\n\n\u003ch3\u003eBacteria Bomb: Clears the Water Column\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBacteria Bomb\u003c\/strong\u003e contains billions of live beneficial bacterial spores that consume the suspended algae and organic particles causing green, murky water. Unlike algaecides, which simply kill algae (leaving dead matter to rot and deplete oxygen), our bacteria bomb breaks down organic material completely, leaving behind clean, oxygenated water.\u003c\/p\u003e\n\n\u003ch3\u003eSludge Bomb: Cleans the Pond Floor\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSludge Bomb\u003c\/strong\u003e sinks to the pond floor and slowly dissolves, releasing targeted bacteria and enzymes that digest the layer of dead leaves, fish waste, and uneaten food that builds up over winter. This layer is the hidden enemy of pond health, constantly leaching toxins into the water column.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eDuo action\u003c\/strong\u003e — water bomb + sludge bomb combined\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eNatural \u0026amp; chemical-free\u003c\/strong\u003e — beneficial bacteria only\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eKoi safe\u003c\/strong\u003e — no fish or plant harm\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eTreats up to 20,000L\u003c\/strong\u003e — large pond coverage\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eWorks in 24–72 hours\u003c\/strong\u003e — fast visible results\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eNo pond shutdown required\u003c\/strong\u003e — fish stay in during treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eContents\u003c\/td\u003e\n\u003ctd\u003e1× Bacteria Bomb + 1× Sludge Bomb\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTreatment volume\u003c\/td\u003e\n\u003ctd\u003eUp to 20,000 litres per duo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eActive ingredients\u003c\/td\u003e\n\u003ctd\u003eBeneficial bacterial spores and enzymes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eChemical content\u003c\/td\u003e\n\u003ctd\u003eNone — 100% natural\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSafe for\u003c\/td\u003e\n\u003ctd\u003eKoi, goldfish, pond plants, wildlife\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eResults visible\u003c\/td\u003e\n\u003ctd\u003e24–72 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eRemove packaging and drop the Bacteria Bomb into your pond near the return flow from your filter.\u003c\/li\u003e\n  \u003cli\u003eDrop the Sludge Bomb into the deepest part of your pond.\u003c\/li\u003e\n  \u003cli\u003eAllow 24–72 hours for bacteria to establish and begin working.\u003c\/li\u003e\n  \u003cli\u003eFor heavily affected ponds, repeat treatment after 7 days.\u003c\/li\u003e\n  \u003cli\u003eMaintain regular filtration throughout treatment.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs the Bacteria Bomb safe for koi and goldfish?\u003c\/h3\u003e\n\u003cp\u003eYes, completely. The product contains only naturally occurring beneficial bacteria — the same strains found in healthy pond ecosystems. They pose zero risk to fish, plants, frogs, or other pond wildlife.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will I see results?\u003c\/h3\u003e\n\u003cp\u003eMost pond keepers notice improved clarity within 24 hours. Full clearing of green water typically takes 48–72 hours. Heavily silted ponds may require a second treatment after 7 days.\u003c\/p\u003e\n\n\u003ch3\u003eCan I use this in a pond with a UV filter?\u003c\/h3\u003e\n\u003cp\u003eYes, but switch off your UV clarifier for 48 hours after treatment to allow the bacterial colonies to establish. UV light will kill the beneficial bacteria before they can become effective.\u003c\/p\u003e\n\n\u003ch3\u003eHow often should I treat my pond?\u003c\/h3\u003e\n\u003cp\u003eA monthly treatment through the spring and summer growing season is ideal for maintenance. Use a full dose at the start of spring (after winter) and again any time water clarity deteriorates.\u003c\/p\u003e\n\n\u003ch3\u003eWhat size pond does one Duo Pack treat?\u003c\/h3\u003e\n\u003cp\u003eOne Duo Pack treats ponds up to 20,000 litres. For larger ponds, use multiple packs proportionally. The 3 Duo Pack bundle offers better value for large koi ponds with ongoing treatment needs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e🚚 Free UK delivery | 📦 Dispatched within 1 business day | 💬 Expert pond advice available\u003c\/em\u003e\u003c\/p\u003e","brand":"PondLiners Co","offers":[{"title":"1 Duo Pack","offer_id":57667226304860,"sku":null,"price":72.0,"currency_code":"GBP","in_stock":true},{"title":"3 Duo Packs","offer_id":57667226337628,"sku":null,"price":179.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/2035\/9260\/files\/e4892cc76e2b0624ee8458d34a28f019.jpg?v=1779043006","url":"https:\/\/www.pondlinersco.co.uk\/products\/pond-bacteria-bomb-sludge-bomb-duo-uk-crystal-clear-water-natural-treatment-koi-safe","provider":"PondLinersco.co.uk","version":"1.0","type":"link"}