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Anti-Sludge

Sludge reducer products for garden ponds: bacteria that break down organic sludge, cleaners such as Boost & Clean or Biobooster+, and maintenance packs. By reducing organic matter, they deprive blanket weed of part of its nutrients.

How to choose a sludge reducer?

  • Sludge depth: with a thick layer, vacuum first, then treat to break down what remains.
  • How it works: bacteria (Bactovase, SediFree) for gradual action, cleaners for the bottom and walls.
  • Volume: from 3 to 500 m³ depending on the size.
  • Sequence: after Boost & Clean, wait 72 hours before adding bacteria; switch off the UV during the bacterial treatment.

Read: vacuum or use bacteria and Boost & Clean, how to use it. See also sludge reducers and Biobooster and Bactogen.

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Our experts' choice
Étang en automne, feuilles qui tombent sur l'eau, bidon de Bactovase Liquide Pro au bord
Aquipond Bactovase Liquide 1L ou 5L – Réduit la vase organique – Bactéries d'automne pour étang Aquipond Bactovase Liquide 1 L or 5 L - Anti-sludge bacteria for ponds
Original price €39,00 - Original price €119,00
Original price
€39,00 - €119,00
€39,00 - €119,00
Current price €39,00
1.0l | €39,00 / l

Aquipond Bactovase Liquide 1 L or 5 L - Anti-sludge bacteria for ponds

Aquipond Bactovase Liquide acts on algae and sludge thanks to bacteria specially formulated for autumn. Ideal for reducing the accumulation of orga...

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Original price €39,00 - Original price €119,00
Original price
€39,00 - €119,00
€39,00 - €119,00
Current price €39,00
1.0l | €39,00 / l
Our experts' choice
Vidéo Aquipond Bactovase en bassin – Foudebassin
Aquipond Bactovase 1 kg – Bacteria for pond sludge reduction (5 to 10 m²) Aquipond Bactovase 1 kg – Bacteria for pond sludge reduction (5 to 10 m²)
Original price €39,95 - Original price €39,95
Original price
€39,95
€39,95 - €39,95
Current price €39,95

Aquipond Bactovase 1 kg – Bacteria for pond sludge reduction (5 to 10 m²)

Reduces the sludge layer in ponds by at least 40% Easy to use, with less impact on biodiversity Prevents fermentation and unpleasant odors. pH an...

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Original price €39,95 - Original price €39,95
Original price
€39,95
€39,95 - €39,95
Current price €39,95
Original price €89,95 - Original price €89,95
Original price
€89,95
€89,95 - €89,95
Current price €89,95

Aquipond Bactovase 2.5 kg – Bacteria to reduce pond sludge (12.5 to 25 m²)

Reduces the sludge layer in ponds by at least 40%. Easy to use with less impact on biodiversity Prevents fermentation and unpleasant odors. pH an...

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Original price €89,95 - Original price €89,95
Original price
€89,95
€89,95 - €89,95
Current price €89,95
Our experts' choice
Vidéo Aquipond Bactovase en bassin – Foudebassin
Aquipond Bactovase 5 kg – Bacteria to reduce pond sludge (25 to 50 m²) Aquipond Bactovase 5 kg – Bacteria to reduce pond sludge (25 to 50 m²)
Original price €151,00 - Original price €151,00
Original price
€151,00
€151,00 - €151,00
Current price €151,00

Aquipond Bactovase 5 kg – Bacteria to reduce pond sludge (25 to 50 m²)

Reduces the sludge layer in ponds by at least 40%. Easy to use with less impact on biodiversity Prevents fermentation and unpleasant odors. pH an...

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Original price €151,00 - Original price €151,00
Original price
€151,00
€151,00 - €151,00
Current price €151,00
Original price €259,00 - Original price €259,00
Original price
€259,00
€259,00 - €259,00
Current price €259,00

Aquipond Bactovase 10 kg – Bacteria to reduce pond sludge (50 to 100 m²)

Reduces the sludge layer in ponds by at least 40%. Easy to use with less impact on biodiversity Prevents fermentation and unpleasant odors. pH an...

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Original price €259,00 - Original price €259,00
Original price
€259,00
€259,00 - €259,00
Current price €259,00
Original price €369,00 - Original price €369,00
Original price
€369,00
€369,00 - €369,00
Current price €369,00

Aquipond Bactovase 25 kg – Bacteria to reduce pond sludge (125 to 250 m²)

Reduces the sludge layer in ponds by at least 40%. Easy to use with less impact on biodiversity Prevents fermentation and unpleasant odors. pH an...

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Original price €369,00 - Original price €369,00
Original price
€369,00
€369,00 - €369,00
Current price €369,00
Our experts' choice
Aquipond Boost & Clean : poudre dispersée dans l'eau d'un bassin naturel – Foudebassin
Aquipond Boost & Clean - Effectively clean your ponds, lagoons & walls
Aquipond Boost & Clean - Biological cleaner for ponds and lagoons
Original price €39,95 - Original price €269,95
Original price
€39,95 - €269,95
€39,95 - €269,95
Current price €39,95

Aquipond Boost & Clean - Biological cleaner for ponds and lagoons

Aquipond Boost & Clean – The pond’s biological deep clean Over the weeks, fallen leaves, leftover food, fish waste, and organic matter accumul...

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Original price €39,95 - Original price €269,95
Original price
€39,95 - €269,95
€39,95 - €269,95
Current price €39,95
Original price €269,00
Original price €269,00 - Original price €269,00
Original price €269,00
Current price €249,00
€249,00 - €249,00
Current price €249,00

Boost & Clean Pack + Aquipond Bacto Maintenance – Pack for treating 100M³

The Aquipond duo for cleaning and then biologically rebalancing your pond up to 100 m³. Boost & Clean helps loosen and bring accumulated organi...

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Original price €269,00
Original price €269,00 - Original price €269,00
Original price €269,00
Current price €249,00
€249,00 - €249,00
Current price €249,00
-7 %
Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95

AquaActiv SediFree 500ml - High performance bacteria for slime degradation

Oase

SediFree contains high-performance bacteria for the degradation of silt. The two-component system with active oxygen granules accelerates the brea...

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Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95
Original price €104,95 - Original price €104,95
Original price
€104,95
€104,95 - €104,95
Current price €104,95

AquaActiv SediFree 5L - High performance bacteria for the degradation of silt

Oase

SediFree contains high-performance bacteria for the degradation of silt. The two-component system with active oxygen granules accelerates the break...

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Original price €104,95 - Original price €104,95
Original price
€104,95
€104,95 - €104,95
Current price €104,95
Original price €19,95
Original price €19,95 - Original price €19,95
Original price €19,95
Current price €14,90
€14,90 - €14,90
Current price €14,90

Biobooster+ for 3m³ - The pond cleaner

Aquatic Science

This product significantly reduces the amount of sludge in your pond. A net or surface skimmer can be used to collect the sludge that rises to the ...

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Original price €19,95
Original price €19,95 - Original price €19,95
Original price €19,95
Current price €14,90
€14,90 - €14,90
Current price €14,90
-25 %
Original price €34,95
Original price €34,95 - Original price €34,95
Original price €34,95
Current price €27,11
€27,11 - €27,11
Current price €27,11

Biobooster+ for 6m³ - The pond cleaner

Aquatic Science

This product significantly reduces the amount of sludge in your pond. A net or surface skimmer can be used to collect the sludge on the surface aft...

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Original price €34,95
Original price €34,95 - Original price €34,95
Original price €34,95
Current price €27,11
€27,11 - €27,11
Current price €27,11
-22 %
Original price €59,95
Original price €59,95 - Original price €59,95
Original price €59,95
Current price €37,90
€37,90 - €37,90
Current price €37,90

Aquatic Science Biobooster+ 12 m³ - Anti-sludge for ponds

Complete the biological maintenance of the pondBiobooster+ for 12m³ - The pond cleanerBiobooster+ is part of the maintenance of a pond facing organ...

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Original price €59,95
Original price €59,95 - Original price €59,95
Original price €59,95
Current price €37,90
€37,90 - €37,90
Current price €37,90
-37 %
Original price €79,95
Original price €79,95 - Original price €79,95
Original price €79,95
Current price €59,95
€59,95 - €59,95
Current price €59,95

Biobooster+ for 24m³ - The pond cleaner

Aquatic Science

This product significantly reduces the amount of sludge in your pond. A net or surface skimmer can be used to collect the sludge that rises to the ...

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Original price €79,95
Original price €79,95 - Original price €79,95
Original price €79,95
Current price €59,95
€59,95 - €59,95
Current price €59,95
-25 %
Original price €89,95
Original price €89,95 - Original price €89,95
Original price €89,95
Current price €79,94
€79,94 - €79,94
Current price €79,94

Biobooster+ for 40m³ - The pond cleaner

Aquatic Science

This product significantly reduces the amount of sludge in your pond. A net or surface skimmer can be used to collect the sludge on the surface aft...

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Original price €89,95
Original price €89,95 - Original price €89,95
Original price €89,95
Current price €79,94
€79,94 - €79,94
Current price €79,94
-11 %
Our experts' choice Best price
Aquatic Science Biobooster+ for 200m³ - The pond cleaner – photo 2
Aquatic Science Biobooster+ for 200m³ - The pond cleaner
-16 % Aquatic Science Biobooster+ 200 m³ - Anti-sludge for ponds
Original price €259,95
Original price €259,95 - Original price €259,95
Original price €259,95
Current price €217,91
€217,91 - €217,91
Current price €217,91

Aquatic Science Biobooster+ 200 m³ - Anti-sludge for ponds

Significantly reduces the amount of sludge and algae in your pond. A net or surface skimmer can be used to collect surface sludge after using the p...

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Original price €259,95
Original price €259,95 - Original price €259,95
Original price €259,95
Current price €217,91
€217,91 - €217,91
Current price €217,91
-16 %
Original price €495,00
Original price €495,00 - Original price €495,00
Original price €495,00
Current price €477,00
€477,00 - €477,00
Current price €477,00

Aquatic Science Biobooster+ 500 m³ - Anti-sludge for ponds

Significantly reduces the amount of sludge in your pond. A net or surface skimmer can be used to collect the sludge on the surface after using the ...

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Original price €495,00
Original price €495,00 - Original price €495,00
Original price €495,00
Current price €477,00
€477,00 - €477,00
Current price €477,00
-4 %
Original price €28,55
Original price €28,55 - Original price €28,55
Original price €28,55
Current price €25,95
€25,95 - €25,95
Current price €25,95

Biobooster+ 3m³ + Bactogen 3m³ Pack - Ideal for complete maintenance

Aquatic Science

This pack is suitable for a 3000 liter pool. It contains the Biobooster treatment for your pond and maintenance bacteria. 2 treatments for bacter...

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Original price €28,55
Original price €28,55 - Original price €28,55
Original price €28,55
Current price €25,95
€25,95 - €25,95
Current price €25,95
-9 %
Original price €49,92
Original price €49,92 - Original price €49,92
Original price €49,92
Current price €44,95
€44,95 - €44,95
Current price €44,95

Biobooster+ 6m³ + Bactogen 6m³ Pack - Ideal for complete maintenance

Aquatic Science

This pack is suitable for a 6,000 liter pool. It contains the Biobooster treatment for your pond and maintenance bacteria. 2 treatments for bacte...

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Original price €49,92
Original price €49,92 - Original price €49,92
Original price €49,92
Current price €44,95
€44,95 - €44,95
Current price €44,95
-10 %
Original price €62,84
Original price €62,84 - Original price €62,84
Original price €62,84
Current price €56,95
€56,95 - €56,95
Current price €56,95

Biobooster+ Pack 12m³ + Bactogen 12m³ - Ideal for complete maintenance

Aquatic Science

This pack is suitable for a 12,000 liter pool. It contains the Biobooster treatment for your pond and maintenance bacteria. 2 treatments for bacte...

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Original price €62,84
Original price €62,84 - Original price €62,84
Original price €62,84
Current price €56,95
€56,95 - €56,95
Current price €56,95
-9 %
Original price €99,89
Original price €99,89 - Original price €99,89
Original price €99,89
Current price €90,95
€90,95 - €90,95
Current price €90,95

Biobooster+ 24m³ + Bactogen 24m³ Pack - Ideal for complete maintenance

Aquatic Science

This pack is suitable for a 24,000 liter pool. It contains the Biobooster treatment for your pond and maintenance bacteria. 2 treatments for bacte...

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Original price €99,89
Original price €99,89 - Original price €99,89
Original price €99,89
Current price €90,95
€90,95 - €90,95
Current price €90,95
-9 %
Original price €138,35
Original price €138,35 - Original price €138,35
Original price €138,35
Current price €124,95
€124,95 - €124,95
Current price €124,95

Aquatic Science Biobooster+ and Bactogen Pack 40 m³ - Pond maintenance

In short For the complete maintenance of a 40,000-litre (40 m³) pond. Contents: Biobooster+ 40 m³ and Bactogen 40 m³. Directions for use: follow...

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Original price €138,35
Original price €138,35 - Original price €138,35
Original price €138,35
Current price €124,95
€124,95 - €124,95
Current price €124,95
-10 %
Original price €29,99 - Original price €29,99
Original price
€29,99
€29,99 - €29,99
Current price €29,99

Bactoplus Sludge Buster BSO 1L for 10.000L - Prevents slime formation

The heterotrophic bacteria present in BSO fix organic matter in a natural way, such as silt for example in the bottom of the garden pond, in the fi...

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Original price €29,99 - Original price €29,99
Original price
€29,99
€29,99 - €29,99
Current price €29,99
Original price €62,49 - Original price €62,49
Original price
€62,49
€62,49 - €62,49
Current price €62,49

Bactoplus Sludge Buster BSO 2.5L for 25.000L - Prevents slime formation

The heterotrophic bacteria present in BSO fix organic matter in a natural way, such as silt for example in the bottom of the garden pond, in the fi...

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Original price €62,49 - Original price €62,49
Original price
€62,49
€62,49 - €62,49
Current price €62,49
Original price €15,79 - Original price €15,79
Original price
€15,79
€15,79 - €15,79
Current price €15,79

Bactuur Clean Sludge 500ml for 2500litres - Sludge reducer

Colombo

Bactuur Clean is suitable for both cleaning and maintenance of your garden pond and filter. Each milliliter contains 100 million live bacteria. Th...

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Original price €15,79 - Original price €15,79
Original price
€15,79
€15,79 - €15,79
Current price €15,79
Original price €24,99 - Original price €24,99
Original price
€24,99
€24,99 - €24,99
Current price €24,99

Bactuur Clean Sludge 1000ml for 5000litres - Slime reducer

Colombo

Bactuur Clean is suitable for both cleaning and maintenance of your garden pond and filter. Each milliliter contains 100 million live bacteria. The...

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Original price €24,99 - Original price €24,99
Original price
€24,99
€24,99 - €24,99
Current price €24,99
Original price €41,99 - Original price €41,99
Original price
€41,99
€41,99 - €41,99
Current price €41,99

Bactuur Clean Sludge 2500ml for 12.500litres - Sludge reducer

Colombo

Bactuur Clean is suitable for both cleaning and maintenance of your garden pond and filter. Each milliliter contains 100 million live bacteria. The...

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Original price €41,99 - Original price €41,99
Original price
€41,99
€41,99 - €41,99
Current price €41,99
Original price €65,95 - Original price €65,95
Original price
€65,95
€65,95 - €65,95
Current price €65,95

Microbe-Lift Natural Sludge Reducer 4L - Sludge reducer

Natural Slugde Reducer for swimming ponds is a 100% natural liquid from materials on the basis of humus. This one-of-a-kind formula has been devel...

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Original price €65,95 - Original price €65,95
Original price
€65,95
€65,95 - €65,95
Current price €65,95
Original price €66,95 - Original price €66,95
Original price
€66,95
€66,95 - €66,95
Current price €66,95

Microbe-Lift Sludge away (mud) 4L - Sludge reducer

Ensures rapid decomposition and natural breakdown of bottom sludge 80% faster than comparable products Binds phosphates Helps make pond water crys...

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Original price €66,95 - Original price €66,95
Original price
€66,95
€66,95 - €66,95
Current price €66,95
Original price €19,95
Original price €19,95 - Original price €19,95
Original price €19,95
Current price €17,87
€17,87 - €17,87
Current price €17,87

Nautex in 5kg bucket - Coccolithic chalk for pond

Aquipond

Useful for managing and combating eutrophication caused by organic pollution. Annual maintenance recommended. 💡 Dosage: 100 g/m² per application, 2...

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Original price €19,95
Original price €19,95 - Original price €19,95
Original price €19,95
Current price €17,87
€17,87 - €17,87
Current price €17,87
-10 %
Original price €29,95 - Original price €29,95
Original price
€29,95
€29,95 - €29,95
Current price €29,95

Nautex in 10kg bucket - Coccolithic chalk for pond

Aquipond

Useful for managing and combating eutrophication caused by organic pollution. Annual maintenance recommended. 💡 Dosage: 100 g/m² per application, 2...

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Original price €29,95 - Original price €29,95
Original price
€29,95
€29,95 - €29,95
Current price €29,95
Original price €39,95 - Original price €39,95
Original price
€39,95
€39,95 - €39,95
Current price €39,95

Nautex in 25kg bag - Coccolithic chalk for pond

Aquipond

Useful for managing and combating organic pollution eutrophication phenomena. An exceptional solution made from a rare quality calcium carbonate, a...

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Original price €39,95 - Original price €39,95
Original price
€39,95
€39,95 - €39,95
Current price €39,95
Original price €395,00 - Original price €395,00
Original price
€395,00
€395,00 - €395,00
Current price €395,00

Nautex 1/2 pallet of 450kg - Coccolithic chalk for pond

Aquipond

Useful for managing and combating eutrophication caused by organic pollution. Annual maintenance recommended. 💡 Dosage: 100 g/m² per application, 2...

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Original price €395,00 - Original price €395,00
Original price
€395,00
€395,00 - €395,00
Current price €395,00
Original price €825,00 - Original price €825,00
Original price
€825,00
€825,00 - €825,00
Current price €825,00

Nautex 900kg pallet - Coccolithic chalk for pond

Aquipond

Useful for managing and combating eutrophication caused by organic pollution. Annual maintenance recommended. 💡 Dosage: 100 g/m² per application, 2...

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Original price €825,00 - Original price €825,00
Original price
€825,00
€825,00 - €825,00
Current price €825,00
Original price €295,00
Original price €295,00 - Original price €295,00
Original price €295,00
Current price €169,00
€169,00 - €169,00
Current price €169,00

BIOLIMPID - FIGHT ALGAE & SILTING 10KG for 1000 M² - IDEAL AGAINST CYANOBACTERIA

Aquipond

BIOLIMPID - FIGHT ALGAE & SILTING 1000 M² IDEAL AGAINST CYANOBACTERIA This process makes it possible to reduce eutrophication by regulat...

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Original price €295,00
Original price €295,00 - Original price €295,00
Original price €295,00
Current price €169,00
€169,00 - €169,00
Current price €169,00
-43 %
Original price €199,00
Original price €199,00 - Original price €199,00
Original price €199,00
Current price €129,35
€129,35 - €129,35
Current price €129,35

BIOLIMPID - FIGHT ALGAE & SILTING 400 M² - IDEAL AGAINST CYANOBACTERIA

Aquipond

BIOLIMPID - FIGHT ALGAE & SILTING 1000 M² IDEAL AGAINST CYANOBACTERIA This process makes it possible to reduce eutrophication by regulat...

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Original price €199,00
Original price €199,00 - Original price €199,00
Original price €199,00
Current price €129,35
€129,35 - €129,35
Current price €129,35
-35 %
Original price €409,95 - Original price €409,95
Original price
€409,95
€409,95 - €409,95
Current price €409,95

Clean-Lac 12kg for 800m² - Bacteria for natural pond - Clear water & reduction of silt and algae

Aquatic Science

Clean-Lac is a formulation designed to improve water quality when the volume is too large to be filtered. It is a specific solution for large volu...

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Original price €409,95 - Original price €409,95
Original price
€409,95
€409,95 - €409,95
Current price €409,95
Original price €457,86
Original price €457,86 - Original price €457,86
Original price €457,86
Current price €409,00
€409,00 - €409,00
Current price €409,00

Aquatic Science Biobooster+ and Bactogen Pack 200 m³ - Pond maintenance

This pack is suitable for a 200,000 litre pool . It contains the Biobooster treatment for your pool and maintenance bacteria. 2 treatments for bac...

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Original price €457,86
Original price €457,86 - Original price €457,86
Original price €457,86
Current price €409,00
€409,00 - €409,00
Current price €409,00
-11 %
Original price €1.006,00
Original price €1.006,00 - Original price €1.006,00
Original price €1.006,00
Current price €889,00
€889,00 - €889,00
Current price €889,00

Biobooster+ 500m³ + Bactogen 500m³ Pack - Ideal for complete maintenance

Aquatic Science

This pack is suitable for a 500,000 liter pool. It contains the Biobooster treatment for your pond and maintenance bacteria. 2 treatments for bac...

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Original price €1.006,00
Original price €1.006,00 - Original price €1.006,00
Original price €1.006,00
Current price €889,00
€889,00 - €889,00
Current price €889,00
-12 %
Original price €26,95 - Original price €26,95
Original price
€26,95
€26,95 - €26,95
Current price €26,95

Microbe-Lift Spring - Summer Cleaner 455GR

Designed specifically to speed up the decomposition of leaves, small stems and other dead organic waste. Spring is the perfect season to clean and...

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Original price €26,95 - Original price €26,95
Original price
€26,95
€26,95 - €26,95
Current price €26,95
Original price €19,95 - Original price €19,95
Original price
€19,95
€19,95 - €19,95
Current price €19,95

JBL SediEx Pond 1 kg – Anti-mud treatment and oxygenation for pond (Replaced by SEDI FREE 700G) 500ML

(Replaced by SEDI FREE 700G) 500ML For ponds up to 10,000 liters, SediEx Pond 1 kg combines active oxygen and beneficial bacteria to reduce mud, ...

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Original price €19,95 - Original price €19,95
Original price
€19,95
€19,95 - €19,95
Current price €19,95
Discontinued
Original price €19,95 - Original price €495,00
Original price
€19,95 - €495,00
€19,95 - €495,00
Current price €19,95

Aquatic Science Biobooster+ - Anti-sludge for ponds, from 3 to 500 m³

Biobooster+: a treatment for pond maintenanceBiobooster+ is intended for pond owners looking for a treatment against sludge and filamentous algae. ...

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Original price €19,95 - Original price €495,00
Original price
€19,95 - €495,00
€19,95 - €495,00
Current price €19,95