Say goodbye to the thick, black, foul-smelling sludge that builds up on your pond floor with our Pond Muck & Sludge Reducer Tablets. These convenient, pre-measured dissolvable tablets deliver a concentrated dose of beneficial bacteria directly to the pond floor — exactly where the organic waste accumulates — for targeted, powerful sludge digestion.
Available in formulas treating ponds from 2,500 to 6,000 gallons, these tablets are the hassle-free alternative to measuring liquid or powder treatments. Simply drop the tablets in, and the beneficial bacteria get to work immediately, breaking down organic sludge, clearing murky water, and dramatically improving pond floor cleanliness.
Product Specifications
Specification
Detail
Format
Dissolvable tablets (145 tablets per pack)
Treatment Capacity
2,500 gallons or 6,000 gallons
Active Ingredients
Concentrated beneficial bacteria blend
Target Areas
Pond floor muck, sludge, organic waste
Water Clarity
Clears murky and cloudy water
Safe For
Fish, plants, wildlife, pets
Why Pond Sludge is a Serious Problem
Toxic gas production: Anaerobic decomposition produces hydrogen sulphide, ammonia, and methane — all toxic to fish
Oxygen theft: Decomposing sludge consumes dissolved oxygen fish need
Algae fuel: Excess nutrients released by sludge feed algae blooms
Disease harbour: Thick sludge layers harbour harmful bacteria and parasites
Key Benefits
✅ 145 easy-to-use tablets — no measuring required
✅ Sinks to source — delivers bacteria directly to the pond floor
✅ Clears murky water naturally
✅ Reduces pond floor muck progressively with each treatment
✅ Treats large ponds — up to 6,000 gallons per pack
✅ 100% fish safe — safe for all pond species
Application Guide
Initial treatment: Apply tablets evenly across the pond surface — they sink to the floor
Maintenance: Monthly applications keep sludge from rebuilding
Best conditions: Water temperature above 10°C for optimal bacterial activity
Spring start: Apply full treatment at start of spring after winter dormancy
Which Size Do I Need?
2,500 Gallon Treatment: Garden ponds up to approximately 11,365 litres
6,000 Gallon Treatment: Large koi ponds up to approximately 27,276 litres
With over 1,600 reviews from satisfied UK pond keepers, these sludge reducer tablets deliver visible results within weeks.
Free UK Delivery | UK Stock | Natural Biological Action
