Biological Additives

44 Item(s)

Many ponds can use a boost when it comes to creating a balanced ecosystem. Whether your pond is indoors or outdoors, we have a biological additive that will help clarify your water and reduce pond maintenance. Plus, many of these products can also reduce pond odors by eliminating algae, ammonia and other harmful substances. You’ll find products that are safe for fish and plants, making them incredibly easy to apply and use. Best of all, these pond biological additives create a healthier environment for your fish.

With their all-natural formulas and beneficial bacteria and enzymes, these are fast-acting, effective products that will reduce pond maintenance over time. At Big Al’s, we only stock pond biological additives from brands you can trust, like CrystalClear, Aquascape and TetraPond. We also have various items to fit your needs and your budget, so whether you want a bulk bin or a small bottle, a dry or a liquid formula, we’ve got what you need ready to be shipped to your door.
  • PondCare Ecofix - 16 fl oz
    Makes pond water clean and clear. Breaks down dead algae. Increases the concentration of dissolved oxygen in pond water. Helps create a healthy ecosystem for pond fish. Can be used in ponds containing salt.

    Regular Price: USD 9.49

    Sale Price USD 8.49

    Regular Price: USD 9.49

    Sale Price USD 8.49

  • PondCare Ecofix - 64 fl oz
    Makes pond water clean and clear. Breaks down dead algae. Increases the concentration of dissolved oxygen in pond water. Helps create a healthy ecosystem for pond fish. Can be used in ponds containing salt.

    Regular Price: USD 27.99

    Sale Price USD 24.99

    Regular Price: USD 27.99

    Sale Price USD 24.99

  • CrystalClear Biological Clarifier+ Sludge Remover - 4.5 oz - 6 pk
    An all-natural, freeze-dried bacteria and enzyme complex formulated to remove sludge, odor, and debris. Fortified with several billion bacterial colonies per gram and 6 enzymes all selected for their waste and green water degrading properties.
    USD 13.49
    USD 13.49
  • CrystalClear Biological Clarifier+ Sludge Remover - 2 lb
    An all-natural, freeze-dried bacteria and enzyme complex formulated to remove sludge, odor, and debris. Fortified with several billion bacterial colonies per gram and 6 enzymes all selected for their waste and green water degrading properties.
    USD 39.99
    USD 39.99
  • CrystalClear Biological Clarifier+ Sludge Remover - 6 lb
    An all-natural, freeze-dried bacteria and enzyme complex formulated to remove sludge, odor, and debris. Fortified with several billion bacterial colonies per gram and 6 enzymes all selected for their waste and green water degrading properties.
    USD 152.99
    USD 152.99
  • Aquascape Automatic Dosing System Pond Water Treatment - Clean
    • Bacteria and enzymes promote ideal water conditions
    • Reduces pollution from fish waste and uneaten food
    • Fights bad odors, sludge and foam build-up in ponds
    • Treats up to 2500 gallons for approximately 30 days
    • Safe for animals who access your pond for drinking
    USD 23.98
    USD 23.98
  • Aquascape Automatic Dosing System Pond Water Treatment - Clear
    • Controls build-up of debris and adverse water conditions
    • Reduces issues that can be caused with shock treatments
    • Results in clean, clear water and a maintenance free pond
    • Treats up to 2500 gallons, for up to approximately 30 days!
    • Safe for animals who access your pond as a drinking supply
    USD 23.98
    USD 23.98
  • Aquascape Automatic Dosing System Pond Water Treatment - Protect
    • Prevents parasites, bacterial infections and reduces stress
    • Contains all-natural healing properties from plant extracts
    • Addresses issues with fish loss and strange fish behaviour!
    • Treats up to 2500 gallons, for up to approximately 30 days!
    • Safe for animals who access your pond as a drinking supply
    USD 23.98
    USD 23.98
  • Aquascape Beneficial Bacteria (Liquid) - 1 gal
    • Weekly maintenance treatment maintains a balanced ecosystem
    • Includes 8 strains of beneficial bacteria including enzymes and PSB
    • Natural cleaners clarify your pond by clumping and settling debris
    • Reduces pond maintenance and controls harmful ammonia and nitrite
    • Helps you establish a clean, clear, and healthy pond environment
    USD 63.98
    USD 63.98
  • Aquascape Beneficial Bacteria (Dry) - 7 lb
    • Weekly maintenance treatment maintains a balanced ecosystem
    • Includes 8 strains of beneficial bacteria including enzymes and PSB
    • Natural cleaners clarify your pond by clumping and settling debris
    • Reduces pond maintenance and controls harmful ammonia and nitrite
    • Helps you establish a clean, clear, and healthy pond environment
    USD 119.98
    USD 119.98
  • Aquascape Sludge & Filter Cleaner - 1 gal
    • Weekly maintenance treatment keeps rocks, gravel, and filters clean
    • Includes 5 strains of concentrated heterotrophic beneficial bacteria
    • Natural cleaners break down sludge and maintain biological balance
    • Reduces pond maintenance by keeping filters and other surfaces clean
    • Completely safe for use around fish, plants, and animals
    USD 71.98
    USD 71.98
  • Aquascape Cold Water Beneficial Bacteria (Liquid) - 1 gal
    • Potent biological additive for spring and fall pond maintenance
    • Works quickly to clean and balance your pond ecosystem
    • Contains 7 pure strains of beneficial bacteria (1.5 billion CFU/oz)
    • Formulated for use in very cold water (as low as 35°F / 2°C)
    • Helps control harmful ammonia, nitrite, and excess phosphate
    USD 79.98
    USD 79.98
  • Aquascape Pond Starter Bacteria - 1 gal
    • Establishes a biological ecosystem
    • For new ponds and spring startups
    • Comes in a convenient pump bottle
    • Treats up to 80,000 gallons of water
    • 1 pump treats 500 gallons
    USD 71.98
    USD 71.98
  • Aquascape S.A.B. Stream & Pond Clean - 7 lb
    • Natural cleaners help maintain the biological balance
    • Contains strains of concentrated bacteria and enzymes
    • Breaks down debris in ponds, streams, and waterfalls
    • Maintains clear water and a healthy pond environment
    • Entire 3.2 kg container treats up to 33,800 gallons
    USD 119.98
    USD 119.98
  • Aquascape S.A.B. Stream & Pond Clean - 125 g
    • Enjoy clear water and a healthy pond environment
    • Contains pure strains of concentrated bacteria and enzymes
    • Breaks down debris in ponds, streams, and waterfalls
    • Helps maintain a strong biological balance
    USD 10.38
    USD 10.38
  • Aquascape S.A.B. Stream & Pond Clean - 250 g
    • Enjoy clear water and a healthy pond environment
    • Contains pure strains of concentrated bacteria and enzymes
    • Breaks down debris in ponds, streams, and waterfalls
    • Helps maintain a strong biological balance
    USD 15.98
    USD 15.98
  • Aquascape S.A.B. Stream & Pond Clean - 500 g
    • Enjoy clear water and a healthy pond environment
    • Contains pure strains of concentrated bacteria and enzymes
    • Breaks down debris in ponds, streams, and waterfalls
    • Helps maintain a strong biological balance
    USD 27.98
    USD 27.98
  • Aquascape Beneficial Bacteria (Liquid) - 8.5 fl oz
    • Weekly maintenance treatment maintains a balanced ecosystem
    • Includes 8 strains of beneficial bacteria including enzymes and PSB
    • Natural cleaners clarify your pond by clumping and settling debris
    • Reduces pond maintenance and controls harmful ammonia and nitrite
    • Helps you establish a clean, clear, and healthy pond environment
    USD 11.18
    USD 11.18
  • Aquascape Beneficial Bacteria (Liquid) - 16.9 fl oz
    • Weekly maintenance treatment maintains a balanced ecosystem
    • Includes 8 strains of beneficial bacteria including enzymes and PSB
    • Natural cleaners clarify your pond by clumping and settling debris
    • Reduces pond maintenance and controls harmful ammonia and nitrite
    • Helps you establish a clean, clear, and healthy pond environment
    USD 15.98
    USD 15.98
  • Aquascape Beneficial Bacteria (Liquid) - 33.8 fl oz
    • Weekly maintenance treatment maintains a balanced ecosystem
    • Includes 8 strains of beneficial bacteria including enzymes and PSB
    • Natural cleaners clarify your pond by clumping and settling debris
    • Reduces pond maintenance and controls harmful ammonia and nitrite
    • Helps you establish a clean, clear, and healthy pond environment
    USD 27.98
    USD 27.98
  • Aquascape Beneficial Bacteria (Liquid) - Refill Pouch - 33.8 fl oz
    • Weekly maintenance treatment maintains a balanced ecosystem
    • Includes 8 strains of beneficial bacteria including enzymes and PSB
    • Natural cleaners clarify your pond by clumping and settling debris
    • Reduces pond maintenance and controls harmful ammonia and nitrite
    • Helps you establish a clean, clear, and healthy pond environment
    USD 15.98
    USD 15.98
  • Aquascape Beneficial Bacteria (Dry) - 125 g
    • Weekly maintenance treatment maintains a balanced ecosystem
    • Includes 8 strains of beneficial bacteria including enzymes and PSB
    • Natural cleaners clarify your pond by clumping and settling debris
    • Reduces pond maintenance and controls harmful ammonia and nitrite
    • Helps you establish a clean, clear, and healthy pond environment
    USD 10.38
    USD 10.38
  • Aquascape Beneficial Bacteria (Dry) - 250 g
    • Weekly maintenance treatment maintains a balanced ecosystem
    • Includes 8 strains of beneficial bacteria including enzymes and PSB
    • Natural cleaners clarify your pond by clumping and settling debris
    • Reduces pond maintenance and controls harmful ammonia and nitrite
    • Helps you establish a clean, clear, and healthy pond environment
    USD 15.98
    USD 15.98
  • Aquascape Beneficial Bacteria (Dry) - 500 g
    • Weekly maintenance treatment maintains a balanced ecosystem
    • Includes 8 strains of beneficial bacteria including enzymes and PSB
    • Natural cleaners clarify your pond by clumping and settling debris
    • Reduces pond maintenance and controls harmful ammonia and nitrite
    • Helps you establish a clean, clear, and healthy pond environment
    USD 27.98
    USD 27.98
  • Aquascape Sludge & Filter Cleaner - 8.5 fl oz
    • Weekly maintenance treatment keeps rocks, gravel, and filters clean
    • Includes 5 strains of concentrated heterotrophic beneficial bacteria
    • Natural cleaners break down sludge and maintain biological balance
    • Reduces pond maintenance by keeping filters and other surfaces clean
    • Completely safe for use around fish, plants, and animals
    USD 11.18
    USD 11.18
  • Aquascape Sludge & Filter Cleaner - 16.9 fl oz
    • Weekly maintenance treatment keeps rocks, gravel, and filters clean
    • Includes 5 strains of concentrated heterotrophic beneficial bacteria
    • Natural cleaners break down sludge and maintain biological balance
    • Reduces pond maintenance by keeping filters and other surfaces clean
    • Completely safe for use around fish, plants, and animals
    USD 15.98
    USD 15.98
  • Aquascape Sludge & Filter Cleaner - 33.8 fl oz
    • Weekly maintenance treatment keeps rocks, gravel, and filters clean
    • Includes 5 strains of concentrated heterotrophic beneficial bacteria
    • Natural cleaners break down sludge and maintain biological balance
    • Reduces pond maintenance by keeping filters and other surfaces clean
    • Completely safe for use around fish, plants, and animals
    USD 27.98
    USD 27.98
  • Aquascape Cold Water Beneficial Bacteria (Liquid) - 8 fl oz
    • Potent biological additive for spring and fall pond maintenance
    • Works quickly to clean and balance your pond ecosystem
    • Contains 7 pure strains of beneficial bacteria (1.5 billion CFU/oz)
    • Formulated for use in very cold water (as low as 35°F / 2°C)
    • Helps control harmful ammonia, nitrite, and excess phosphate
    USD 11.98
    USD 11.98
  • Aquascape Cold Water Beneficial Bacteria (Liquid) - 16 fl oz
    • Potent biological additive for spring and fall pond maintenance
    • Works quickly to clean and balance your pond ecosystem
    • Contains 7 pure strains of beneficial bacteria (1.5 billion CFU/oz)
    • Formulated for use in very cold water (as low as 35°F / 2°C)
    • Helps control harmful ammonia, nitrite, and excess phosphate
    USD 19.98
    USD 19.98
  • Aquascape Cold Water Beneficial Bacteria (Liquid) - 33.8 fl oz
    • Potent biological additive for spring and fall pond maintenance
    • Works quickly to clean and balance your pond ecosystem
    • Contains 7 pure strains of beneficial bacteria (1.5 billion CFU/oz)
    • Formulated for use in very cold water (as low as 35°F / 2°C)
    • Helps control harmful ammonia, nitrite, and excess phosphate
    USD 31.98
    USD 31.98
  • TetraPond Water Balance - 8.45 fl oz
    • Stabilizes pH & KH
    • Reduces phosphate nutrients
    • Reduces pond maintenance

    Regular Price: USD 7.99

    Sale Price USD 6.99

    Regular Price: USD 7.99

    Sale Price USD 6.99

    Out of stock

  • Microbe-Lift PL - 16 oz
    • Ideal for decorative ponds or lagoons containing fish
    • Reduces ammonia nitrogen levels and organic sludge
    • Reduces and breaks down dead algae, bird droppings
    • Reduces biological oxygen demand and toxic odors
    • Improves environment and dissolved oxygen levels
    USD 14.49
    USD 14.49

    Out of stock

  • Microbe-Lift TheraP - 1 qt
    • Encourages optimal health for your pond and fish
    • Prevents disease by creating a natural environment
    • Supports immune system & reduces stress of fish
    • Supports rapid fish growth with natural ingredients
    • Safe for all animals that may approach your pond
    USD 26.99
    USD 26.99

    Out of stock

  • Microbe-Lift TheraP - 1 gal
    • Encourages optimal health for your pond and fish
    • Prevents disease by creating a natural environment
    • Supports immune system & reduces stress of fish
    • Supports rapid fish growth with natural ingredients
    • Safe for all animals that may approach your pond
    USD 99.49
    USD 99.49

    Out of stock

  • Aquascape Automatic Dosing System for Ponds
    • Eliminates the hassle of maintaining your pond
    • Featured programmable dial allows precise dosing
    • Comes with one free Maintain water treatment
    • Makes maintaining perfect water quality a breeze
    • Includes a one year, limited manufacturers warranty
    USD 103.98
    USD 103.98

    Out of stock

  • Aquascape Automatic Dosing System for Fountains
    • Eliminates the hassle of maintaining your fountain
    • Featured programmable dial allows precise dosing
    • Accurately doses your water treatment as required
    • Comes with one free Maintain water treatment
    • Makes maintaining perfect water quality a breeze
    USD 103.98
    USD 103.98

    Out of stock

  • Aquascape Automatic Dosing System Pond Water Treatment - Maintain
    • Uses beneficial bacteria, enzymes, and a phosphate binder
    • Reduce maintenance and achieve optimum water quality
    • Removes chlorine, chloramines, heavy metals, and ammonia
    • Treat up to 2500 gallons, for up to approximately 30 days!
    • Perfectly safe for animals who access your pond for drinking
    USD 23.98
    USD 23.98

    Out of stock

  • Aquascape Bacteria Bubble Tabs - 36 pk
    • Eco-friendly tablets keep water clean and sludge free!
    • Contains 8 pure strains of bacteria, including enzymes
    • Weekly dose encourages a strong biological balance
    • Maintains clean, clear, and healthy water conditions
    • Treats up to 3,600 gallons of water, 100 gallons per tab!
    USD 11.98
    USD 11.98

    Out of stock

  • Aquascape Bacteria Bubble Tabs - 72 pk
    • Eco-friendly tablets keep water clean and sludge free!
    • Contains 8 pure strains of bacteria, including enzymes
    • Weekly dose encourages a strong biological balance
    • Maintains clean, clear, and healthy water conditions
    • Treats up to 7,200 gallons of water, 100 gallons per tab!
    USD 19.98
    USD 19.98

    Out of stock

  • Aquascape Sludge Cleaner Bubble Tabs - 36 pk
    • Eco-friendly tabs keep pond bottoms and filters clean
    • Maintains a strong biological balance in your pond
    • Softens pond water, promoting the growth of plants
    • Contains over 500 million heterotrophic bacteria!
    • Treat up to 3,600 gallons of water, 100 gallons per tab
    USD 12.78
    USD 12.78

    Out of stock

  • Aquascape Sludge Cleaner Bubble Tabs - 72 pk
    • Eco-friendly tabs keep pond bottoms and filters clean
    • Maintains a strong biological balance in your pond
    • Softens pond water, promoting the growth of plants
    • Contains over 500 million heterotrophic bacteria!
    • Treat up to 7,200 gallons of water, 100 gallons per tab
    USD 19.98
    USD 19.98

    Out of stock

  • Aquascape Pond Starter Bacteria - 8.5 fl oz
    • Rapidly establishes the biological ecosystem in your pond
    • Eco-friendly additive is ideal for new ponds and spring startups
    • Supports the nitrogen cycle and helps reduce spring fish loss
    • Completely safe for use around fish, plants, and animals
    • Convenient pump bottle ensures quick and accurate dosing
    USD 12.78
    USD 12.78

    Out of stock

  • Aquascape Pond Starter Bacteria - 16.9 fl oz
    • Rapidly establishes the biological ecosystem in your pond
    • Eco-friendly additive is ideal for new ponds and spring startups
    • Supports the nitrogen cycle and helps reduce spring fish loss
    • Completely safe for use around fish, plants, and animals
    • Convenient pump bottle ensures quick and accurate dosing
    USD 19.98
    USD 19.98

    Out of stock

  • Aquascape Pond Starter Bacteria - 33.8 fl oz
    • Rapidly establishes the biological ecosystem in your pond
    • Eco-friendly additive is ideal for new ponds and spring startups
    • Supports the nitrogen cycle and helps reduce spring fish loss
    • Completely safe for use around fish, plants, and animals
    • Convenient pump bottle ensures quick and accurate dosing
    USD 31.98
    USD 31.98

    Out of stock