The 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.
Two Bombs. One Clear Pond.
Most 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.
Bacteria Bomb: Clears the Water Column
The Bacteria Bomb 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.
Sludge Bomb: Cleans the Pond Floor
The Sludge Bomb 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.
Key Features
- ✅ Duo action — water bomb + sludge bomb combined
- ✅ Natural & chemical-free — beneficial bacteria only
- ✅ Koi safe — no fish or plant harm
- ✅ Treats up to 20,000L — large pond coverage
- ✅ Works in 24–72 hours — fast visible results
- ✅ No pond shutdown required — fish stay in during treatment
Product Specifications
| Feature |
Detail |
| Contents |
1× Bacteria Bomb + 1× Sludge Bomb |
| Treatment volume |
Up to 20,000 litres per duo |
| Active ingredients |
Beneficial bacterial spores and enzymes |
| Chemical content |
None — 100% natural |
| Safe for |
Koi, goldfish, pond plants, wildlife |
| Results visible |
24–72 hours |
How to Use
- Remove packaging and drop the Bacteria Bomb into your pond near the return flow from your filter.
- Drop the Sludge Bomb into the deepest part of your pond.
- Allow 24–72 hours for bacteria to establish and begin working.
- For heavily affected ponds, repeat treatment after 7 days.
- Maintain regular filtration throughout treatment.
Frequently Asked Questions
Is the Bacteria Bomb safe for koi and goldfish?
Yes, 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.
How quickly will I see results?
Most 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.
Can I use this in a pond with a UV filter?
Yes, 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.
How often should I treat my pond?
A 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.
What size pond does one Duo Pack treat?
One 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.
🚚 Free UK delivery | 📦 Dispatched within 1 business day | 💬 Expert pond advice available
