
Sludge Cleaner
Liquid sludge breakdown Liquid Sludge Treatment
Expected spring 2027
Sludge Cleaner clears the layer of sludge on the bottom of your pond. Sludge is a layer of rotting organic material: leaves, feed residues and droppings. It makes the water cloudy and can form gases that are harmful to fish and plants.
How does it work? The liquid formula spreads quickly through the whole pond and accelerates the breakdown of slowly degradable bottom sludge. The sludge layer becomes thinner, the risk of harmful gases decreases and the water becomes clearer, without you having to scoop out the pond.
Helps with:
- A thick layer of sludge or dark muck on the bottom
- Cloudy water that keeps coming back
- A rotten smell or bubbles rising from the bottom
When do you use it?
- Monthly as maintenance, all year round
- With heavily polluted water: weekly in the first month
- In spring, to clear the sludge left by winter
Good to know: For stubborn sludge in fixed spots you can combine Sludge Cleaner with Sludge-Up.
- Sludge breakdownBreaks down built-up organic bottom sludge
- Liquid formulaSpreads quickly through the pond
- All year roundCan be used all year round
- For koi & all pond fish
- Label in NL · EN · DE
- Personal advice: info@bisokoaqua.com
Benefits
Why Sludge Cleaner
Sludge breakdown
Breaks down built-up organic bottom sludge
Liquid formula
Spreads quickly through the pond
All year round
Can be used all year round
Use & dosage
How to use Sludge Cleaner
Use once a month for maintenance. With heavily polluted water, use once a week during the first month. Dosage: 100 ml per 1,500 litres of pond water.
Volume unknown? Length × width × average depth (m) × 1,000.
Specifications
| Category | 03 · Pond maintenance & problem solvers |
|---|---|
| Contents | 1 L |
| Form | Liquid |
| Suitable for | Koi & all pond fish |
| Brand | Bisoko · 錦鯉の活力 |
Caution & storage
Shake before use and close the bottle tightly after use. Keep out of reach of children. Do not expose to direct sunlight or temperatures above 38 °C. Do not swallow and avoid contact with eyes.

