Sludge Digester - Liquid Pond Muck & Sludge Remover - Concentrated Formula for Large & Small Ponds - Beneficial Bacteria & Enzyme Formula – Safe for Koi, Fish, Pets & Wildlife - 30+ Years Trusted

UltraClear® Sludge Digester is a natural, eco-friendly solution for reducing pond muck, sludge, and organic buildup while supporting water clarity and balance. 

• 𝗨𝗽 𝘁𝗼 𝟱𝘅 𝗦𝘁𝗿𝗼𝗻𝗴𝗲𝗿 𝗗𝗼𝘀𝗶𝗻𝗴: One ounce of Sludge Digester treats 1,000 gallons, making it one of the most concentrated liquid sludge treatments on the market. A single gallon covers up to 32,000 gallons of pond water with no waste.
• 𝗙𝘂𝗹𝗹-𝗣𝗼𝗻𝗱 𝗟𝗶𝗾𝘂𝗶𝗱 𝗖𝗼𝘃𝗲𝗿𝗮𝗴𝗲 – 𝗡𝗼𝘁 𝗝𝘂𝘀𝘁 𝘁𝗵𝗲 𝗕𝗼𝘁𝘁𝗼𝗺: Unlike tablets and pellets that only act where they sink, Sludge Digester's liquid formula disperses evenly throughout the entire water column, breaking down muck, fish waste, and decaying debris at every depth from surface to sediment.
• 𝗥𝗲𝗱𝘂𝗰𝗲𝘀 𝗠𝘂𝗰𝗸, 𝗢𝗱𝗼𝗿𝘀 & 𝗢𝗿𝗴𝗮𝗻𝗶𝗰 𝗕𝘂𝗶𝗹𝗱𝘂𝗽: Proprietary blend of beneficial bacteria and enzymes digests fish waste, leaves, dead algae, and accumulated sediment, improving oxygen circulation, restoring pond depth, and clearing murky water over time.
• 𝟭𝟬𝟬% 𝗡𝗮𝘁𝘂𝗿𝗮𝗹 – 𝗦𝗮𝗳𝗲 𝗳𝗼𝗿 𝗙𝗶𝘀𝗵, 𝗞𝗼𝗶 & 𝗙𝗮𝗺𝗶𝗹𝘆: Contains no harsh chemicals. Completely safe for koi, fish, aquatic plants, pets, birds, and wildlife. Pond remains safe for swimming, fishing, and recreation immediately after application.
• 𝗕𝗮𝗰𝗸𝗲𝗱 𝗯𝘆 𝟯𝟬+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗣𝗿𝗼𝘄𝗲𝗻 𝗥𝗲𝘀𝘂𝗹𝘁𝘀: Since 1993, UltraClear has been the trusted choice of pond professionals and backyard owners alike. Easy pour-and-dose application, no tablets to count, no pellets to scatter. Use every 2 weeks to start, monthly for maintenance.
• 𝗩𝗲𝗿𝘀𝗮𝘁𝗶𝗹𝗲 𝗳𝗼𝗿 𝗔𝗻𝘆 𝗣𝗼𝗻𝗱 𝗦𝗶𝘇𝗲 & 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻: Ideal for backyard koi ponds, water gardens, larger farm ponds, lake coves, and shoreline treatment. Whether you're managing a 1,000-gallon ornamental pond or a multi-acre property, Sludge Digester scales to your needs with simple pour-and-dose application.
• 𝗣𝗲𝗮𝗸-𝗦𝗲𝗮𝘀𝗼𝗻 𝗣𝗼𝘄𝗲𝗿, 𝗬𝗲𝗮𝗿-𝗥𝗼𝘂𝗻𝗱 𝗦𝘆𝘀𝘁𝗲𝗺: Sludge Digester is optimized for warm-water performance — when bacteria are most active and organic buildup is at its worst. For fall and winter pond care, pair with UltraClear Cold Water Complete to maintain a clean, balanced pond through every season.

This proprietary blend of beneficial bacteria and enzymes disperses evenly across the water column, reaching every part of your pond. Sludge Digester helps minimize organic debris such as fish waste, leaves, and decaying matter that can contribute to odors, murky water, and loss of depth. 

Unlike tablets or pellets that primarily act at the pond bottom, Sludge Digester provides full-pond coverage, making it an excellent choice for larger ponds or routine maintenance. 

Completely safe and non-toxic, Sludge Digester contains no harsh chemicals. Safe for fish, aquatic plants, pets, and pond wildlife. Backed by more than 30 years of proven pond care expertise, Sludge Digester helps keep your pond naturally cleaner, clearer, and easier to enjoy. 

UltraClear® Sludge Digester is a natural, eco-friendly solution for reducing pond muck, sludge, and organic buildup while supporting water clarity and balance. 

• 𝗨𝗽 𝘁𝗼 𝟱𝘅 𝗦𝘁𝗿𝗼𝗻𝗴𝗲𝗿 𝗗𝗼𝘀𝗶𝗻𝗴: One ounce of Sludge Digester treats 1,000 gallons, making it one of the most concentrated liquid sludge treatments on the market. A single gallon covers up to 32,000 gallons of pond water with no waste.
• 𝗙𝘂𝗹𝗹-𝗣𝗼𝗻𝗱 𝗟𝗶𝗾𝘂𝗶𝗱 𝗖𝗼𝘃𝗲𝗿𝗮𝗴𝗲 – 𝗡𝗼𝘁 𝗝𝘂𝘀𝘁 𝘁𝗵𝗲 𝗕𝗼𝘁𝘁𝗼𝗺: Unlike tablets and pellets that only act where they sink, Sludge Digester's liquid formula disperses evenly throughout the entire water column, breaking down muck, fish waste, and decaying debris at every depth from surface to sediment.
• 𝗥𝗲𝗱𝘂𝗰𝗲𝘀 𝗠𝘂𝗰𝗸, 𝗢𝗱𝗼𝗿𝘀 & 𝗢𝗿𝗴𝗮𝗻𝗶𝗰 𝗕𝘂𝗶𝗹𝗱𝘂𝗽: Proprietary blend of beneficial bacteria and enzymes digests fish waste, leaves, dead algae, and accumulated sediment, improving oxygen circulation, restoring pond depth, and clearing murky water over time.
• 𝟭𝟬𝟬% 𝗡𝗮𝘁𝘂𝗿𝗮𝗹 – 𝗦𝗮𝗳𝗲 𝗳𝗼𝗿 𝗙𝗶𝘀𝗵, 𝗞𝗼𝗶 & 𝗙𝗮𝗺𝗶𝗹𝘆: Contains no harsh chemicals. Completely safe for koi, fish, aquatic plants, pets, birds, and wildlife. Pond remains safe for swimming, fishing, and recreation immediately after application.
• 𝗕𝗮𝗰𝗸𝗲𝗱 𝗯𝘆 𝟯𝟬+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗣𝗿𝗼𝘄𝗲𝗻 𝗥𝗲𝘀𝘂𝗹𝘁𝘀: Since 1993, UltraClear has been the trusted choice of pond professionals and backyard owners alike. Easy pour-and-dose application, no tablets to count, no pellets to scatter. Use every 2 weeks to start, monthly for maintenance.
• 𝗩𝗲𝗿𝘀𝗮𝘁𝗶𝗹𝗲 𝗳𝗼𝗿 𝗔𝗻𝘆 𝗣𝗼𝗻𝗱 𝗦𝗶𝘇𝗲 & 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻: Ideal for backyard koi ponds, water gardens, larger farm ponds, lake coves, and shoreline treatment. Whether you're managing a 1,000-gallon ornamental pond or a multi-acre property, Sludge Digester scales to your needs with simple pour-and-dose application.
• 𝗣𝗲𝗮𝗸-𝗦𝗲𝗮𝘀𝗼𝗻 𝗣𝗼𝘄𝗲𝗿, 𝗬𝗲𝗮𝗿-𝗥𝗼𝘂𝗻𝗱 𝗦𝘆𝘀𝘁𝗲𝗺: Sludge Digester is optimized for warm-water performance — when bacteria are most active and organic buildup is at its worst. For fall and winter pond care, pair with UltraClear Cold Water Complete to maintain a clean, balanced pond through every season.

This proprietary blend of beneficial bacteria and enzymes disperses evenly across the water column, reaching every part of your pond. Sludge Digester helps minimize organic debris such as fish waste, leaves, and decaying matter that can contribute to odors, murky water, and loss of depth. 

Unlike tablets or pellets that primarily act at the pond bottom, Sludge Digester provides full-pond coverage, making it an excellent choice for larger ponds or routine maintenance. 

Completely safe and non-toxic, Sludge Digester contains no harsh chemicals. Safe for fish, aquatic plants, pets, and pond wildlife. Backed by more than 30 years of proven pond care expertise, Sludge Digester helps keep your pond naturally cleaner, clearer, and easier to enjoy.